Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 010256
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
956 PM CDT Mon Jun 30 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
956 PM CDT Mon Jun 30 2025 /1056 PM EDT Mon Jun 30 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Friday and Saturday...
Limited Thunderstorm Risk
Limited Excessive Heat Risk
Sunday...
Limited Thunderstorm Risk.

DISCUSSION...

Heat and humidity will return for the holiday weekend. The best
chance of storms will hold off until Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/bwpaf

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 302224
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
524 PM CDT Mon Jun 30 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
524 PM CDT Mon Jun 30 2025 /624 PM EDT Mon Jun 30 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Limited thunderstorm risk near US-24 through 9 PM.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Friday and Saturday...
Limited Thunderstorm Risk
Limited Excessive Heat Risk
Sunday...
Limited Thunderstorm Risk.

DISCUSSION...

Heat and humidity will return for the holiday weekend. The best
chance of storms will hold off until Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the southeast at around 30 mph.


https://wxn.io/7t04n

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 302043
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
343 PM CDT Mon Jun 30 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
343 PM CDT Mon Jun 30 2025 /443 PM EDT Mon Jun 30 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.

DISCUSSION...

Isolated to widely scattered thunderstorms remain possible during
the late afternoon and evening hours. The strongest storms will
be capable of producing localized strong to damaging downburst
winds and brief heavy rainfall. The highest coverage will be
favored southeast of a line from Pontiac to Valparaiso.


.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Friday and Saturday...
Limited Thunderstorm Risk
Limited Excessive Heat Risk
Sunday...
Limited Thunderstorm Risk.

DISCUSSION...

Heat and humidity will return for the holiday weekend. The best
chance of storms will hold off until Saturday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not likely, however isolated storms may
prompt reports of localized higher winds.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east around 30 mph.


https://wxn.io/umtey

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 301708
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1208 PM CDT Mon Jun 30 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1208 PM CDT Mon Jun 30 2025 /108 PM EDT Mon Jun 30 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.

DISCUSSION...

Isolated to scattered thunderstorms are possible during the late
afternoon and evening hours. The strongest storms will be capable
of producing localized strong to damaging downburst winds and
brief heavy rainfall.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Thursday...
Limited Thunderstorm Risk.
Friday and Saturday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Sunday...
Limited Thunderstorm Risk.


.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east 30 to 35 mph.


https://wxn.io/af3ha

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 300843
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
343 AM CDT Mon Jun 30 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
343 AM CDT Mon Jun 30 2025 /443 AM EDT Mon Jun 30 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.

DISCUSSION...

Isolated to scattered thunderstorms are possible again today.
Initially, the focus may be near the lake late this morning and
into the early afternoon, expanding area-wide during the mid
afternoon into the evening. The strongest storms will be capable
of producing localized strong to damaging downburst winds and
brief heavy rainfall.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Thursday...
Limited Thunderstorm Risk.
Friday and Saturday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Sunday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east around 20 mph this morning, then 30 to
35 mph this afternoon and evening.


https://wxn.io/6u25l

Special Weather Statement for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS83 KLOT 300314
SPSLOT

Special Weather Statement
National Weather Service Chicago/Romeoville
1014 PM CDT Sun Jun 29 2025


Lake IL-McHenry IL-
1014 PM CDT Sun Jun 29 2025

...A STRONG THUNDERSTORM WILL IMPACT LAKE AND NORTHEASTERN MCHENRY
COUNTIES THROUGH 1100 PM CDT...

At 1013 PM CDT, Doppler radar was tracking a strong thunderstorm over
Round Lake, moving east at 25 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.

Locations impacted include...
Mettawa, Oakwood Hills, Wauconda, Lake Bluff, Port Barrington, Fox
Lake, Ridgefield, Winthrop Harbor, Round Lake Beach, Hainesville,
Pistakee Highlands, Grayslake, Gurnee, Channel Lake, Round Lake
Heights, Vernon Hills, Libertyville, Russell, Waukegan, Wadsworth,
Volo, Round Lake, Long Lake, Third Lake, and North Chicago.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4249 8780 4246 8780 4239 8781 4238 8781
4236 8782 4237 8782 4233 8783 4233 8782
4231 8782 4230 8783 4227 8783 4222 8781
4224 8838 4250 8838
TIME...MOT...LOC 0313Z 263DEG 21KT 4234 8812

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH


https://wxn.io/6nag1

Special Weather Statement for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS83 KLOT 300159
SPSLOT

Special Weather Statement
National Weather Service Chicago/Romeoville
859 PM CDT Sun Jun 29 2025


Lake IL-Boone IL-McHenry IL-Winnebago IL-
859 PM CDT Sun Jun 29 2025

...SCATTERED SLOW-MOVING THUNDERSTORMS MOVING ACROSS FAR NORTHERN
ILLINOIS...

At 858 PM CDT, Doppler radar was tracking several slow-moving
thunderstorms across far northern Illinois.

HAZARD...Localized wind gusts up to 50 mph, frequent lightning, and
torrential downpours.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Torrential downpours may lead to
localized flooding of low-lying areas.

Locations impacted include...
Oakwood Hills, Lake Summerset, Hawthorn Woods, Ridgefield, Highwood,
Round Lake Beach, Garden Prairie, Hainesville, Poplar Grove, Huntley,
Gurnee, Buffalo Grove, Russell, Waukegan, Volo, Rockford, Crystal
Lake, Long Lake, Roscoe, Capron, Lake Catherine, Rockford Airport,
Forest Lake, Zion, and Spring Grove.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Torrential rainfall is also occurring with these storm and may lead
to localized flooding. Do not drive your vehicle through flooded
roadways.

Some storms may intensify, so be certain to monitor local radio
stations and available television stations for additional
information and possible warnings from the National Weather Service.

&&

LAT...LON 4249 8780 4229 8783 4215 8776 4215 8917
4221 8917 4220 8940 4250 8940
TIME...MOT...LOC 0158Z 223DEG 14KT 4232 8914

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH


https://wxn.io/cksj1

Special Weather Statement for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS83 KLOT 300051
SPSLOT

Special Weather Statement
National Weather Service Chicago/Romeoville
751 PM CDT Sun Jun 29 2025


Lake IL-Kane IL-De Kalb IL-Boone IL-McHenry IL-Northern Cook IL-
Winnebago IL-Ogle IL-Lee IL-
751 PM CDT Sun Jun 29 2025

...SCATTERED SLOW-MOVING THUNDERSTORMS ACROSS FAR NORTHERN
ILLINOIS...

At 748 PM CDT, Doppler radar was tracking multiple slow-moving
scattered thunderstorms across far northern Illinois. Additional
storms are expected to develop across the Special Weather Statement
area.

HAZARD...Localized wind gusts up to 50 mph, frequent lightning, and
torrential downpours.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects. Torrential downpours may lead to
localized flooding of low-lying areas.

Locations that may be impacted include...

Forreston, Byron, Rockford, Belvidere, Kirkland, Rochelle, Crystal
Lake, Mundelein, Arlington Heights, and Elgin.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

Torrential rainfall is also occurring with this storm and may lead to
localized flooding. Do not drive your vehicle through flooded
roadways.

&&

LAT...LON 4249 8780 4227 8783 4207 8768 4201 8789
4198 8835 4187 8883 4173 8906 4189 8924
4190 8963 4193 8963 4193 8969 4220 8969
4220 8940 4250 8940
TIME...MOT...LOC 0050Z 318DEG 18KT 4209 8928

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH


https://wxn.io/6d98e

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 292110
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
410 PM CDT Sun Jun 29 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
410 PM CDT Sun Jun 29 2025 /510 PM EDT Sun Jun 29 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Excessive Heat Risk.

DISCUSSION...

Scattered thunderstorms will persist through the early evening,
particularly near Lake Michigan and near and south of Interstate
80. Isolated to perhaps widely scattered thunderstorms are then
possible in the late evening and overnight across the area. The
strongest thunderstorms through tonight may be capable of producing
localized strong to damaging downburst winds.

Heat indices this afternoon away from the Illinois lakeshore will
top out around 100 degrees.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Saturday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is unlikely through tonight, but any reports
are appreciated.

GENERAL STORM MOTION OF THE DAY:

Moving toward the north-northeast at 10 mph.


https://wxn.io/pb5st

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 291715
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1215 PM CDT Sun Jun 29 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1215 PM CDT Sun Jun 29 2025 /115 PM EDT Sun Jun 29 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 50 to 60 mph.
Limited Excessive Heat Risk.

DISCUSSION...

Isolated thunderstorms will continue to develop through early
evening, particularly near Lake Michigan and south of the Kankakee
River Valley. Isolated to perhaps widely scattered thunderstorms
are then possible in the late evening and overnight. The strongest
thunderstorms through tonight may be capable of producing
localized strong to damaging downburst winds.

Heat indices this afternoon away from the Illinois shore will top
out around 100 degrees.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Saturday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is unlikely through tonight, but any reports
are appreciated.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast at 10 mph.


https://wxn.io/7la6y

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 290921
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
421 AM CDT Sun Jun 29 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
421 AM CDT Sun Jun 29 2025 /521 AM EDT Sun Jun 29 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 50 to 60 mph.
Limited Excessive Heat Risk.

DISCUSSION...

Isolated thunderstorms may develop this afternoon and continue
into the early evening, with a possible focus being near the lake
breeze in northeast Illinois. Isolated to perhaps widely scattered
thunderstorms are then possible in the late evening and overnight.
The strongest thunderstorms through tonight may be capable of
producing localized strong to damaging downburst winds.

Heat indices this afternoon away from the Illinois shore will top
out around 100 degrees.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Saturday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is unlikely through tonight, but any reports
are appreciated.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-northeast at 10 to 15 mph.


https://wxn.io/gp3k5

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 282114
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
414 PM CDT Sat Jun 28 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
414 PM CDT Sat Jun 28 2025 /514 PM EDT Sat Jun 28 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/qlc4q

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 280815
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
315 AM CDT Sat Jun 28 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
315 AM CDT Sat Jun 28 2025 /415 AM EDT Sat Jun 28 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

No hazardous weather is expected at this time.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Friday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/q2mdr

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 280156
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
856 PM CDT Fri Jun 27 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
856 PM CDT Fri Jun 27 2025 /956 PM EDT Fri Jun 27 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Limited Thunderstorm Risk near US 24.

DISCUSSION:

An isolated thunderstorm cannot be ruled out near US 24 before
midnight.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Sunday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at around 10 mph.


https://wxn.io/0e2fh

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 271916
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
216 PM CDT Fri Jun 27 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
216 PM CDT Fri Jun 27 2025 /316 PM EDT Fri Jun 27 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.

DISCUSSION...

Isolated to widely scattered thunderstorms are expected this
afternoon into early this evening, primarily south and east of
I-55. The strongest storms could produce gusty winds and brief
heavy rainfall.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Sunday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotters activation is not expected tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-northest at 25 mph.


https://wxn.io/aiwi0

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 271535
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1035 AM CDT Fri Jun 27 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1035 AM CDT Fri Jun 27 2025 /1135 AM EDT Fri Jun 27 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.

DISCUSSION...

There is a chance for a few non-severe thunderstorms late this
morning west of I-57.

Isolated to widely scattered thunderstorms are expected this
afternoon into early this evening, primarily south and east of
I-55. The strongest storms could produce gusty downburst winds
and brief heavy rainfall.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Sunday...
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotters activation is not expected tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-northest at 25 mph.


https://wxn.io/c205g

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 271202 CCA
HWOLOT

Hazardous Weather Outlook...CORRECTED
National Weather Service Chicago/Romeoville IL
702 AM CDT Fri Jun 27 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
702 AM CDT Fri Jun 27 2025 /802 AM EDT Fri Jun 27 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk.

DISCUSSION...

There is a chance for a few non-severe thunderstorms this morning
west of I-57.

Isolated to widely scattered thunderstorms are possible this
afternoon, primarily east of I-55 and I-57. The strongest storms
could produce gusty downburst winds and brief heavy rainfall.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Sunday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-northeast at 30 mph.


https://wxn.io/vqnyh

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 270846
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
346 AM CDT Fri Jun 27 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
346 AM CDT Fri Jun 27 2025 /446 AM EDT Fri Jun 27 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk.

DISCUSSION...

There is a chance for a few non-severe thunderstorms this morning
west of I-57.

Isolated to widely scattered thunderstorms are possible this
afternoon, primarily east of I-55/57. The strongest storms could
produce gusty downburst winds and brief heavy rainfall.

.DAYS TWO THROUGH SEVEN...Saturday through Thursday.

Sunday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-northeast at 30 mph.


https://wxn.io/jrrmq

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 270232
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
932 PM CDT Thu Jun 26 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
932 PM CDT Thu Jun 26 2025 /1032 PM EDT Thu Jun 26 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk.

DISCUSSION...

A line of weakening thunderstorms will continue moving into
northwestern Illinois this evening. The line is currently not
expected to make it as far east as Lake Michigan. No severe
weather is expected overnight.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Sunday...
Elevated Excessive Heat Risk.
Limited Flooding Risk.
Limited Thunderstorm Risk.
Monday...
Elevated Thunderstorm Risk.
Limited Flooding Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected at this time.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 30 mph.


https://wxn.io/a1qtw

Special Weather Statement for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS83 KLOT 270002
SPSLOT

Special Weather Statement
National Weather Service Chicago/Romeoville
702 PM CDT Thu Jun 26 2025


Lake IL-Kane IL-McHenry IL-DuPage IL-Northern Cook IL-
702 PM CDT Thu Jun 26 2025

...GUSTY THUNDERSTORMS WILL MOVE ACROSS PARTS OF LAKE, KANE,
MCHENRY, DUPAGE, AND FAR NORTHWESTERN COOK COUNTIES THIS EVENING...

At 701 PM CDT, Doppler radar was tracking numerous gusty
thunderstorms across northeastern Illinois. All were moving
northeast at 20 to 25 mph.

HAZARD...Wind gusts up to 50 mph.

SOURCE...Radar indicated.

IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.

Locations impacted include...
Oakwood Hills, Rolling Meadows, Valley View, Lily Lake, Hawthorn
Woods, Ridgefield, Highwood, Round Lake Beach, Hainesville, South
Elgin, Huntley, South Barrington, Gurnee, Gilberts, Buffalo Grove,
Wayne, Waukegan, Volo, Crystal Lake, Long Lake, Barrington Hills,
Lake Catherine, Palatine, Hoffman Estates, and Forest Lake.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

If outdoors, consider seeking shelter inside a building.

&&

LAT...LON 4238 8781 4233 8783 4231 8782 4229 8783
4215 8776 4185 8820 4192 8828 4192 8860
4249 8858 4249 8780
TIME...MOT...LOC 0001Z 211DEG 19KT 4198 8847

MAX HAIL SIZE...0.00 IN
MAX WIND GUST...50 MPH


https://wxn.io/pnpj6

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 261957
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
257 PM CDT Thu Jun 26 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
257 PM CDT Thu Jun 26 2025 /357 PM EDT Thu Jun 26 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.
Elevated Excessive Heat Risk.

DISCUSSION...

The threat of widely scattered thunderstorms will continue
through the evening hours. Conditions are not favorable for
organized or widespread severe weather, however there is a very
low risk that an isolated storm could produce very isolated
marginally damaging wind gusts. In addition, thunderstorms will be
capable of producing torrential downpours.

Heat indices will remain around 100 degrees until sunset.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday...
Limited Flooding Risk.
Limited Thunderstorm Risk.
Sunday...
Elevated Excessive Heat Risk.
Limited Flooding Risk.
Limited Thunderstorm Risk.
Monday...
Elevated Thunderstorm Risk.
Limited Flooding Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast at around 20 mph.


https://wxn.io/dw4zl

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 261625
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1125 AM CDT Thu Jun 26 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1125 AM CDT Thu Jun 26 2025 /1225 PM EDT Thu Jun 26 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.
Limited Excessive Heat Risk.

DISCUSSION...

Widely scattered thunderstorms are expected to develop this
afternoon and continue into the early evening. The strongest
storms will be capable of producing gusty to locally damaging wind
gusts as well as heavy downpours.

Hot and humid conditions are expected today with peak afternoon
heat indices of 100 to 105 degrees.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday and Saturday...
Limited Thunderstorm Risk.
Sunday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances will continue through early next
week.

Heat indices may exceed 100 degrees again on Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast at 20 to 25 mph.


https://wxn.io/ldo6f

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 260923
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
423 AM CDT Thu Jun 26 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
423 AM CDT Thu Jun 26 2025 /523 AM EDT Thu Jun 26 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.
Limited Excessive Heat Risk.

DISCUSSION...

Isolated to widely scattered thunderstorms may develop again this
afternoon and evening. The strongest storms will be capable of
producing gusty to locally damaging wind gusts as well as heavy
downpours.

Hot and humid conditions are expected today with peak afternoon
heat indices potentially exceeding 100 degrees in some areas.

.DAYS TWO THROUGH SEVEN...Friday through Wednesday.

Friday and Saturday...
Limited Thunderstorm Risk.
Sunday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances will continue through early next
week.

Heat indices may exceed 100 degrees again on Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast at 25 to 30 mph.


https://wxn.io/3jub8

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 260232 AAA
HWOLOT

Hazardous Weather Outlook...UPDATED
National Weather Service Chicago/Romeoville IL
932 PM CDT Wed Jun 25 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
932 PM CDT Wed Jun 25 2025 /1032 PM EDT Wed Jun 25 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.
Limited Fog Risk Illinois Lake Michigan Shore.

DISCUSSION...

Isolated thunderstorms are possible overnight, especially
north of Interstate 80. The strongest storms will be capable
of producing gusty to locally damaging wind gusts as well as
heavy downpours.

Patchy dense fog will be possible near the Lake Michigan
shore in northeast Illinois.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Friday through Sunday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances will continue through early next
week. Heat indices will approach or exceed 100 degrees at times,
most notably on Friday and Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed overnight north of Interstate 80.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 25 to 35 mph.


https://wxn.io/2wwze

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 251954
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
254 PM CDT Wed Jun 25 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
254 PM CDT Wed Jun 25 2025 /354 PM EDT Wed Jun 25 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.
Limited Excessive Heat Risk south of I-80.

DISCUSSION...

Isolated to widely scattered thunderstorms is expected this
afternoon and evening. The strongest storms will be capable of
producing gusty to locally damaging wind gusts as well as heavy
downpours.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Friday through Sunday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances will continue through early next
week. Heat indices will approach or exceed 100 degrees at times,
most notably on Friday and Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this afternoon and evening, mainly south
of Interstate 80.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast 25 to 30 mph.


https://wxn.io/gncux

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 251524
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1024 AM CDT Wed Jun 25 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1024 AM CDT Wed Jun 25 2025 /1124 AM EDT Wed Jun 25 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.
Limited Excessive Heat Risk south of I-80.

DISCUSSION...

Isolated to widely scattered thunderstorms may develop again this
afternoon and evening. The strongest storms will be capable of
producing gusty to locally damaging wind gusts as well as heavy
downpours.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Friday through Sunday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Monday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances will continue through early next
week.

.SPOTTER INFORMATION STATEMENT...

Spotters activation is not likely, but may be needed this
afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast at 25 to 30 mph.


https://wxn.io/xux1u

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 250907
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
407 AM CDT Wed Jun 25 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
407 AM CDT Wed Jun 25 2025 /507 AM EDT Wed Jun 25 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.
Limited Excessive Heat Risk south of I-80.

DISCUSSION...

Isolated to widely scattered thunderstorms may develop again this
afternoon and evening. The strongest storms will be capable of
gusty to locally damaging wind gusts as well as heavy downpours.

.DAYS TWO THROUGH SEVEN...Thursday through Tuesday.

Thursday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.

Friday through Sunday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

Monday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances will continue through early next
week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not likely, but may be needed this
afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast at 25 to 30 mph.


https://wxn.io/bldcj

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 250242
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
942 PM CDT Tue Jun 24 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
942 PM CDT Tue Jun 24 2025 /1042 PM EDT Tue Jun 24 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk
Limited Flooding Risk.

DISCUSSION...

Isolated to widely scattered thunderstorms may continue
intermittently overnight. Locally heavy rainfall leading to
isolated instances of flooding and gusty winds will be the main
threats from the strongest storms.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday and Thursday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Friday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Saturday through Monday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances will continue through early next
week. The strongest storms may be capable of producing damaging
winds and localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast at 25 to 30 mph.


https://wxn.io/z4oyt

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 241939
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
239 PM CDT Tue Jun 24 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
239 PM CDT Tue Jun 24 2025 /339 PM EDT Tue Jun 24 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 50 mph.
Limited Flooding Risk.
Limited Excessive Heat Risk.

DISCUSSION...

Isolated to widely scattered thunderstorms are expected through
mid evening. In addition to lightning, the strongest storms may be
capable of localized flooding, mainly this evening into the early
overnight hours. Any damaging wind threat would be isolated
through early evening.

Afternoon heat indices of 100 to 105 degrees mainly south of I-80 will
ease this evening.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday and Thursday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Friday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Saturday through Monday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances will continue through early next
week. The strongest storms may be capable of producing damaging
winds and localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not likely, but any reports of flooding
due to heavy rain this evening will be appreciated.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast at 30 mph.


https://wxn.io/rhkps

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 241648
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1148 AM CDT Tue Jun 24 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1148 AM CDT Tue Jun 24 2025 /1248 PM EDT Tue Jun 24 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.
Elevated Excessive Heat Risk mainly south of I-80.

DISCUSSION...

Scattered thunderstorms are expected this afternoon and evening.
In addition to frequent lightning, the strongest storms may be
capable of localized damaging winds and flooding.

Afternoon heat indices of 100 to 105 degrees are expected again
today in areas south of I-80, though expect heat indices to
approach most areas away from the northeast Illinois lakeshore.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday and Thursday...
Limited Flooding Risk.
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Excessive Heat Risk.
Friday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.
Saturday through Monday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances will continue through early next
week. The strongest storms may be capable of producing damaging
winds and localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed late this afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast at 30 mph.


https://wxn.io/ptg2q

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 240845
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
345 AM CDT Tue Jun 24 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
345 AM CDT Tue Jun 24 2025 /445 AM EDT Tue Jun 24 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk.
Elevated Excessive Heat Risk south of I-80.

DISCUSSION...

Scattered thunderstorms are expected this afternoon and evening.
In addition to frequent lightning, the strongest storms may be
capable of localized damaging winds and flooding.

Afternoon heat indices of 100 to 105 degrees are expected again
today in areas south of I-80.

.DAYS TWO THROUGH SEVEN...Wednesday through Monday.

Wednesday and Thursday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.

Friday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

Saturday through Monday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances will continue through early next
week. The strongest storms may be capable of producing damaging
winds and localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotters may be needed this afternoon and evening.

GENERAL STORM MOTION OF THE DAY:

Moving toward the northeast at 30 mph.


https://wxn.io/9hqcc

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 240336
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1036 PM CDT Mon Jun 23 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1036 PM CDT Mon Jun 23 2025 /1136 PM EDT Mon Jun 23 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk.
Limited Flooding Risk.

DISCUSSION...

Showers and a few thunderstorms will push across parts of the
region tonight, with the greatest chances across northwest
Illinois. The main threats from the strongest storms and outflow
will be gusty winds to 40 mph and brief heavy rainfall.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday and Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Elevated Excessive Heat Risk south of I-80.

Thursday through Sunday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

DISCUSSION...

Periodic thunderstorm chances will exist into the weekend, as
a nearly stationary frontal boundary lingers in the vicinity.
The strongest storms may be capable of producing damaging
wind gusts and localized flooding.

While lower than the past few days, afternoon peak heat indices
near 100 to 105 degrees are expected, mainly south of I-80.

.SPOTTER INFORMATION STATEMENT...

Spotter activation is not expected tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east-northeast at 20 to 30 mph.


https://wxn.io/th1vy

Heat Advisory Cancellation for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS73 KLOT 240309
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1009 PM CDT Mon Jun 23 2025



/O.CAN.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Northern Will-Southern Will-Eastern Will-
Lake IN-Porter-
Including the cities of Belvidere, Ottawa, Bolingbrook, Rockford,
Hammond, Naperville, Crete, Buffalo Grove, Channahon, Peotone,
Waukegan, Mendota, DeKalb, Plano, Woodstock, Manhattan, Portage,
Minooka, Valparaiso, Oswego, Algonquin, Elgin, Wilmington,
Gurnee, Byron, Morris, Mundelein, Yorkville, Sycamore,
Plainfield, La Salle, Carol Stream, Marseilles, Coal City,
Crystal Lake, Streator, Oregon, Aurora, Gary, Joliet, Wheaton,
McHenry, Mokena, Lombard, Dixon, Downers Grove, Rochelle,
Merrillville, Chesterton, and Beecher
1009 PM CDT Mon Jun 23 2025

...HEAT ADVISORY IS CANCELLED...


https://wxn.io/4vxrn

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 232033
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
333 PM CDT Mon Jun 23 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
333 PM CDT Mon Jun 23 2025 /433 PM EDT Mon Jun 23 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk, mainly in northwest Illinois.
Elevated Excessive Heat Risk.

DISCUSSION...

Oppressive heat and humidity will persist into this evening, with
heat indices gradually falling through the 90s early.

A few thunderstorms may move into portions of northern Illinois
late this evening and overnight, along an outflow boundary that is
expected to push into the area from Wisconsin. The strongest
storms will be capable of frequent lightning, gusty outflow winds,
and heavy rainfall.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday and Wednesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.

Thursday through Sunday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

DISCUSSION...

Periodic thunderstorm chances will exist into the weekend, as
a nearly stationary frontal boundary lingers in the vicinity.
The strongest storms may be capable of producing damaging
wind gusts and localized flooding.

While lower than the past few days, afternoon peak heat indices
near 100 are expected, especially south of I-80.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will likely not be n...

https://wxn.io/a0e02

Heat Advisory for McHenry Co., IL until 12:00 AM CDT 6/24

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS73 KLOT 231928
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
228 PM CDT Mon Jun 23 2025



/O.CON.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Northern Will-Southern Will-Eastern Will-
Lake IN-Porter-
Including the cities of Plainfield, Crystal Lake, Mokena, Oswego,
Merrillville, Buffalo Grove, Gary, Rochelle, Elgin, Mendota,
Beecher, Mundelein, Rockford, Algonquin, Byron, Sycamore, Aurora,
Channahon, McHenry, Gurnee, Yorkville, Joliet, Oregon,
Wilmington, Minooka, Morris, Waukegan, Streator, Coal City,
Hammond, Bolingbrook, Peotone, Valparaiso, Crete, Naperville,
Marseilles, DeKalb, Manhattan, Wheaton, Carol Stream, Plano,
Lombard, Ottawa, Belvidere, Portage, Woodstock, Downers Grove,
Chesterton, La Salle, and Dixon
228 PM CDT Mon Jun 23 2025

...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT TONIGHT...

* WHAT...Peak afternoon heat indices of 100 to 105 degrees expected

* WHERE...Portions of north central and northeast Illinois and
northwest Indiana.

* WHEN...Until midnight CDT tonight.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&


https://wxn.io/lff8w

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 231608
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1108 AM CDT Mon Jun 23 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1108 AM CDT Mon Jun 23 2025 /1208 PM EDT Mon Jun 23 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Significant Excessive Heat Risk.
Limited Thunderstorm Risk Tonight...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk Tonight.

DISCUSSION...

Expect another day of oppressive heat and humidity today with
high temperatures in the middle 90s and afternoon heat indices
between 100 and 105 degrees.

A few thunderstorms may drift into portions of the area this
evening and overnight, mainly north of a Dixon to Woodstock line.
The strongest storms will be capable of frequent lightning, gusty
outflow winds, and heavy rainfall.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Wednesday and Thursday...
Limited Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Friday through Sunday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances exist through the end of the week.
The strongest storms may be capable of damaging winds and
localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 20 mph.


https://wxn.io/s45l4

Heat Advisory for McHenry Co., IL until 12:00 AM CDT 6/24

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS73 KLOT 231512
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1012 AM CDT Mon Jun 23 2025



/O.CON.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Plainfield, Roselawn, Crystal Lake,
Pontiac, Mokena, Oswego, Gibson City, Buffalo Grove, Gary,
Rochelle, Elgin, Merrillville, Mendota, Beecher, Bradley,
Mundelein, Watseka, Gilman, Rockford, Algonquin, Byron, Kentland,
Sycamore, Aurora, Channahon, McHenry, Gurnee, Yorkville, Joliet,
Oregon, Wilmington, Oxford, Minooka, Fairbury, Paxton, Fowler,
Morris, Waukegan, Streator, Coal City, Kankakee, Bolingbrook,
Peotone, Hammond, Valparaiso, Crete, Naperville, Marseilles,
DeKalb, Morocco, Manhattan, Dwight, Wheaton, Carol Stream, Plano,
Lombard, Ottawa, Bourbonnais, DeMotte, Rensselaer, Belvidere,
Portage, Woodstock, Downers Grove, Chesterton, La Salle, and
Dixon
1012 AM CDT Mon Jun 23 2025 /1112 AM EDT Mon Jun 23 2025/

...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT /1 AM EDT/
TONIGHT...

* WHAT...Peak afternoon heat indices of 100 to 105 degrees expected.

* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

* WHEN...Until midnight CDT /1 AM EDT/ tonight.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&


https://wxn.io/7eyop

Heat Advisory for McHenry Co., IL until 12:00 AM CDT 6/24

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS73 KLOT 230937
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
437 AM CDT Mon Jun 23 2025



/O.CON.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Fowler, Elgin, Wilmington, Merrillville,
Oxford, Aurora, Bolingbrook, Morocco, Yorkville, Portage,
Waukegan, Ottawa, Coal City, Gibson City, Peotone, Rockford,
Beecher, Channahon, Hammond, Streator, Roselawn, Sycamore,
Mundelein, Lombard, Kentland, Kankakee, Oswego, Marseilles,
Plano, Joliet, Dwight, Paxton, Bourbonnais, Rensselaer, Crystal
Lake, DeKalb, Dixon, Algonquin, Gilman, Wheaton, Carol Stream,
DeMotte, Valparaiso, Gurnee, Bradley, McHenry, Rochelle,
Manhattan, Buffalo Grove, Naperville, Woodstock, Gary, Mokena,
Chesterton, Morris, Watseka, Byron, Belvidere, Oregon, Downers
Grove, Minooka, Fairbury, Plainfield, Crete, Pontiac, Mendota,
and La Salle
437 AM CDT Mon Jun 23 2025 /537 AM EDT Mon Jun 23 2025/

...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT /1 AM EDT/
TONIGHT...

* WHAT...Peak afternoon heat indices of 100 to 105 degrees expected.

* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

* WHEN...Until midnight CDT /1 AM EDT/ tonight.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&


https://wxn.io/jqsjz

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 230934
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
434 AM CDT Mon Jun 23 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
434 AM CDT Mon Jun 23 2025 /534 AM EDT Mon Jun 23 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Significant Excessive Heat Risk.
Limited Thunderstorm Risk Tonight...with an associated:
Level 1 of 5 Damaging Wind Risk...up to 60 mph.
Limited Flooding Risk Tonight.

DISCUSSION...

Expect another day of oppressive heat and humidity today with high
temperatures in the middle 90s and afternoon heat indices between
100 and 105 degrees.

A few thunderstorms may drift into portions of the area this
evening and overnight, mainly north of a Dixon to Woodstock line.
The strongest storms will be capable of frequent lightning, gusty
outflow winds, and heavy rainfall.

.DAYS TWO THROUGH SEVEN...Tuesday through Sunday.

Tuesday...
Elevated Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.

Wednesday and Thursday...
Limited Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.

Friday through Sunday...
Limited Thunderstorm Risk.

DISCUSSION...

Periodic thunderstorm chances exist through the end of the week.
The strongest storms may be capable of damaging winds and
localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.

GENERAL STORM MOTION OF THE DAY:

Moving toward the east at 20 mph.


https://wxn.io/902fc

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 230258
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
958 PM CDT Sun Jun 22 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
958 PM CDT Sun Jun 22 2025 /1058 PM EDT Sun Jun 22 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Significant Excessive Heat Risk.

DISCUSSION...

Conditions will remain very warm and humid tonight with
temperatures only expected to fall into the middle 70s to around
80, warmest in and just outside of the city of Chicago.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Significant Excessive Heat Risk.
Monday Evening through Thursday...
Limited Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Friday and Saturday...
Limited Thunderstorm Risk.

DISCUSSION...

Expect dangerous heat to continue through Monday with peak heat
indices again between 100 and 105 degrees.

Periodic thunderstorm chances exist Monday evening through the
end of the week. The strongest storms may be capable of damaging
winds and localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/70mou

Heat Advisory for McHenry Co., IL until 12:00 AM CDT 6/24

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS73 KLOT 230206
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
906 PM CDT Sun Jun 22 2025



/O.CON.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Roselawn, Minooka, Oxford, Coal City,
Oregon, Pontiac, Kentland, Gibson City, Naperville, Rensselaer,
Merrillville, La Salle, Woodstock, Mokena, Fowler, Paxton,
Crystal Lake, Elgin, Wheaton, Aurora, Downers Grove, Carol
Stream, DeKalb, Valparaiso, Peotone, Byron, Algonquin, Morris,
Fairbury, Rockford, Streator, Wilmington, Crete, Morocco,
Hammond, Belvidere, Gilman, Dixon, DeMotte, Mendota, Waukegan,
McHenry, Manhattan, Plano, Rochelle, Yorkville, Joliet, Lombard,
Sycamore, Plainfield, Chesterton, Bolingbrook, Ottawa, Gurnee,
Portage, Watseka, Bradley, Beecher, Gary, Buffalo Grove,
Channahon, Marseilles, Mundelein, Kankakee, Dwight, Oswego, and
Bourbonnais
906 PM CDT Sun Jun 22 2025 /1006 PM EDT Sun Jun 22 2025/

...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT /1 AM EDT/
MONDAY NIGHT...

* WHAT...Peak afternoon heat indices of 100 to 105 degrees expected
on Monday.

* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

* WHEN...Until midnight CDT /1 AM EDT/ Monday Night.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

* ADDITIONAL DETAILS...Heat impacts will be worsened by consecutive
days of hot and humid conditions, with overnight lows in the mid
to upper 70s providing limited relief.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&


https://wxn.io/iiyzl

Heat Advisory for McHenry Co., IL until 12:00 AM CDT 6/24

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS73 KLOT 221958
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
258 PM CDT Sun Jun 22 2025



/O.CON.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Oswego, Streator, La Salle, Pontiac,
Channahon, Elgin, Dwight, Ottawa, Byron, Crystal Lake, Fowler,
Oregon, Sycamore, Buffalo Grove, Morris, DeKalb, Mokena, Carol
Stream, Watseka, Peotone, Marseilles, Plainfield, Mundelein,
Beecher, Oxford, Kankakee, Waukegan, Kentland, Minooka, Rochelle,
Bradley, Hammond, Gurnee, Algonquin, Bourbonnais, Paxton,
Bolingbrook, Wilmington, Merrillville, Rensselaer, Roselawn,
Gilman, Woodstock, Fairbury, Naperville, Morocco, Chesterton,
Portage, Coal City, Manhattan, Belvidere, Mendota, Aurora,
DeMotte, Rockford, Gibson City, Joliet, Gary, Downers Grove,
Crete, McHenry, Wheaton, Plano, Dixon, Valparaiso, Lombard, and
Yorkville
258 PM CDT Sun Jun 22 2025 /358 PM EDT Sun Jun 22 2025/

...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT /1 AM EDT/
MONDAY NIGHT...

* WHAT...Heat index values of up to 105 to 110 degrees occurring
this afternoon and peak afternoon heat indices of 100 to 105
degrees expected on Monday.

* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

* WHEN...Until midnight CDT /1 AM EDT/ Monday Night.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

* ADDITIONAL DETAILS...Heat impacts will be worsened by consecutive
days of hot and humid conditions, with overnight lows in the mid
to upper 70s providing limited relief.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&


https://wxn.io/1lay2

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 221948
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
248 PM CDT Sun Jun 22 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
248 PM CDT Sun Jun 22 2025 /348 PM EDT Sun Jun 22 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Significant Excessive Heat Risk.

DISCUSSION...

Conditions will remain very warm and humid tonight with
temperatures only expected to fall into the middle 70s to around
80, warmest in and just outside of the city of Chicago.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Significant Excessive Heat Risk.
Monday Evening through Thursday...
Limited Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Friday and Saturday...
Limited Thunderstorm Risk.

DISCUSSION...

Expect dangerous heat to continue through Monday with peak heat
indices again between 100 and 105 degrees.

Periodic thunderstorm chances exist Monday evening through the
end of the week. The strongest storms may be capable of damaging
winds and localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/2nzci

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 221708
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1208 PM CDT Sun Jun 22 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1208 PM CDT Sun Jun 22 2025 /108 PM EDT Sun Jun 22 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...This Afternoon and Tonight.

Weather hazards expected...

Significant Excessive Heat Risk.

DISCUSSION...

Oppressive heat will continue today with highs in the middle to
locally 90s and heat indices between 100 and 110. Conditions will
also remain very warm tonight with temperatures only expected to
fall into the middle 70s to around 80, warmest in and just outside
of the city of Chicago.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Significant Excessive Heat Risk.
Monday Evening through Thursday...
Limited Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.
Friday and Saturday...
Limited Thunderstorm Risk.

DISCUSSION...

Expect dangerous heat to continue through Monday with peak heat
indices again between 100 and 105 degrees.

Periodic thunderstorm chances exist Monday evening through the
end of the week. The strongest storms may be capable of damaging
winds and localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/1z19h

Heat Advisory for McHenry Co., IL until 12:00 AM CDT 6/24

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS73 KLOT 221604
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1104 AM CDT Sun Jun 22 2025



/O.CON.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Oswego, Streator, La Salle, Pontiac,
Channahon, Elgin, Dwight, Ottawa, Byron, Crystal Lake, Fowler,
Oregon, Sycamore, Buffalo Grove, Morris, DeKalb, Mokena, Carol
Stream, Watseka, Peotone, Marseilles, Plainfield, Mundelein,
Beecher, Oxford, Kankakee, Waukegan, Kentland, Minooka, Rochelle,
Bradley, Hammond, Gurnee, Algonquin, Bourbonnais, Paxton,
Bolingbrook, Wilmington, Merrillville, Rensselaer, Roselawn,
Gilman, Woodstock, Fairbury, Naperville, Morocco, Chesterton,
Portage, Coal City, Manhattan, Belvidere, Mendota, Aurora,
DeMotte, Rockford, Gibson City, Joliet, Gary, Downers Grove,
Crete, McHenry, Wheaton, Plano, Dixon, Valparaiso, Lombard, and
Yorkville
1104 AM CDT Sun Jun 22 2025 /1204 PM EDT Sun Jun 22 2025/

...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT /1 AM EDT/
MONDAY NIGHT...

* WHAT...Peak afternoon heat index values around 105 degrees
expected.

* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

* WHEN...Until midnight CDT /1 AM EDT/ Monday Night.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

* ADDITIONAL DETAILS...Heat impacts will be worsened by consecutive
days of hot and humid conditions, with overnight lows in the mid
70s providing limited relief.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&


https://wxn.io/1vvdn

Heat Advisory for McHenry Co., IL until 12:00 AM CDT 6/24

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS73 KLOT 220858
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
358 AM CDT Sun Jun 22 2025



/O.CON.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Bolingbrook, Streator, Plainfield,
McHenry, Chesterton, Wheaton, Mundelein, Ottawa, Minooka,
Waukegan, Watseka, Mokena, Crete, Peotone, Marseilles, Morocco,
Woodstock, Gibson City, DeMotte, Gary, Downers Grove, Gurnee,
Yorkville, Dwight, Naperville, Bradley, Joliet, Plano, Oxford,
Aurora, Fowler, Coal City, DeKalb, Rochelle, Rensselaer,
Merrillville, Crystal Lake, Pontiac, Beecher, Gilman, Channahon,
Oregon, Oswego, Portage, La Salle, Roselawn, Valparaiso, Buffalo
Grove, Morris, Byron, Carol Stream, Kankakee, Lombard, Manhattan,
Kentland, Elgin, Bourbonnais, Fairbury, Wilmington, Dixon,
Rockford, Sycamore, Paxton, Hammond, Algonquin, Mendota, and
Belvidere
358 AM CDT Sun Jun 22 2025 /458 AM EDT Sun Jun 22 2025/

...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT /1 AM EDT/
MONDAY NIGHT...

* WHAT...Peak afternoon heat index values between 100 and 105
degrees expected.

* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

* WHEN...Until midnight CDT /1 AM EDT/ Monday Night.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

* ADDITIONAL DETAILS...Heat impacts will be worsened by consecutive
days of hot and humid conditions, with overnight lows in the mid
70s providing limited relief.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

&&


https://wxn.io/fx3nn

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 220851
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
351 AM CDT Sun Jun 22 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
351 AM CDT Sun Jun 22 2025 /451 AM EDT Sun Jun 22 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Significant Excessive Heat Risk.

DISCUSSION...

Oppressive heat will continue today with highs in the middle 90s
and heat indices between 100 and 105. Conditions will also remain
very warm tonight with temperatures only expected to fall into
the middle and upper 70s.

.DAYS TWO THROUGH SEVEN...Monday through Saturday.

Monday...
Significant Excessive Heat Risk.

Monday Evening through Tuesday...
Limited Thunderstorm Risk...with an associated:
Level 1 of 5 Severe Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.

Wednesday and Thursday...
Limited Thunderstorm Risk.
Limited Flooding Risk.
Limited Excessive Heat Risk.

Friday and Saturday...
Limited Thunderstorm Risk.

DISCUSSION...

Expect dangerous heat to continue through Monday with peak heat
indices again between 100 and 105 forecast.

Periodic thunderstorm chances exist Monday evening through the
end of the week. The strongest storms may be capable of damaging
winds and localized flooding.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/77tlh

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 220239
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
939 PM CDT Sat Jun 21 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
939 PM CDT Sat Jun 21 2025 /1039 PM EDT Sat Jun 21 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Elevated Excessive Heat Risk.

DISCUSSION...

Only minimal relief from the heat expected late tonight,
particularly across the urban core of Chicago.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday and Monday...
Significant Excessive Heat Risk.
Monday night through Thursday..
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

DISCUSSION...

The stretch of dangerous heat and humidity will continue Sunday
and Monday. Peak heat indices between 100 and 107 degrees are
forecast, with the worst conditions on Sunday.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/hhr17

Heat Advisory for McHenry Co., IL until 12:00 AM CDT 6/24

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS73 KLOT 220159
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
859 PM CDT Sat Jun 21 2025



/O.CON.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Paxton, Gary, Gilman, Minooka,
Bourbonnais, Buffalo Grove, Wheaton, Valparaiso, Byron, Lombard,
Carol Stream, Pontiac, Manhattan, Rochelle, Coal City, Watseka,
Mokena, Rensselaer, Merrillville, Elgin, DeKalb, Woodstock,
Peotone, Morris, Rockford, Dixon, Gibson City, Bolingbrook,
Joliet, Mundelein, Kankakee, Bradley, Sycamore, Aurora, Waukegan,
Crystal Lake, Gurnee, Algonquin, Crete, La Salle, Belvidere,
McHenry, Roselawn, Downers Grove, Marseilles, Dwight, Hammond,
Beecher, Chesterton, Streator, Portage, Oswego, Channahon,
Naperville, Fairbury, Oxford, Ottawa, Yorkville, DeMotte,
Mendota, Kentland, Fowler, Plano, Morocco, Plainfield,
Wilmington, and Oregon
859 PM CDT Sat Jun 21 2025 /959 PM EDT Sat Jun 21 2025/

...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT /1 AM EDT/
MONDAY NIGHT...

* WHAT...Peak afternoon heat index values around 105 degrees
expected.

* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

* WHEN...Until midnight CDT /1 AM EDT/ Monday Night.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

* ADDITIONAL DETAILS...Heat impacts will be worsened by consecutive
days of hot and humid conditions, with overnight lows in the mid
70s providing limited relief.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Monitor the latest forecasts and warnings for updates.

&&


https://wxn.io/qf12z

Heat Advisory for McHenry Co., IL until 12:00 AM CDT 6/24

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS73 KLOT 212035
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
335 PM CDT Sat Jun 21 2025



/O.CON.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Paxton, Gary, Gilman, Minooka,
Bourbonnais, Buffalo Grove, Wheaton, Valparaiso, Byron, Lombard,
Carol Stream, Pontiac, Manhattan, Rochelle, Coal City, Watseka,
Mokena, Rensselaer, Merrillville, Elgin, DeKalb, Woodstock,
Peotone, Morris, Rockford, Dixon, Gibson City, Bolingbrook,
Joliet, Mundelein, Kankakee, Bradley, Sycamore, Aurora, Waukegan,
Crystal Lake, Gurnee, Algonquin, Crete, La Salle, Belvidere,
McHenry, Roselawn, Downers Grove, Marseilles, Dwight, Hammond,
Beecher, Chesterton, Streator, Portage, Oswego, Channahon,
Naperville, Fairbury, Oxford, Ottawa, Yorkville, DeMotte,
Mendota, Kentland, Fowler, Plano, Morocco, Plainfield,
Wilmington, and Oregon
335 PM CDT Sat Jun 21 2025 /435 PM EDT Sat Jun 21 2025/

...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT /1 AM EDT/
MONDAY NIGHT...

* WHAT...Peak afternoon heat index values around 105 degrees
expected.

* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

* WHEN...Until midnight CDT /1 AM EDT/ Monday Night.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

* ADDITIONAL DETAILS...Heat impacts will be worsened by consecutive
days of hot and humid conditions, with overnight lows in the mid
70s providing limited relief.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Monitor the latest forecasts and warnings for updates.

&&


https://wxn.io/7s3gm

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 211910
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
210 PM CDT Sat Jun 21 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
210 PM CDT Sat Jun 21 2025 /310 PM EDT Sat Jun 21 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Tonight.

Weather hazards expected...

Significant Excessive Heat Risk.

DISCUSSION...

Heat indices above 100 degrees are expected this afternoon with
heat indices likely to remain in the 90s much of this evening.
Only minimal relief from the heat expected late tonight.

Southwest winds will gusts of 30 to 40 mph are expected
through mid to late evening.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday and Monday...
Significant Excessive Heat Risk.
Monday night through Thursday..
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/rx7ir

Heat Advisory for McHenry Co., IL until 12:00 AM CDT 6/24

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

WWUS73 KLOT 211527
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
1027 AM CDT Sat Jun 21 2025



/O.CON.KLOT.HT.Y.0001.000000T0000Z-250624T0500Z/
Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-La
Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-Northern
Will-Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-
Benton-
Including the cities of Dixon, Rockford, Minooka, Chesterton,
Roselawn, Oregon, Fowler, Merrillville, DeMotte, Carol Stream,
Belvidere, Mokena, Sycamore, Channahon, Wheaton, Bourbonnais,
Downers Grove, Bradley, Beecher, Pontiac, Plainfield, Portage,
Kentland, Paxton, Morris, Gilman, Marseilles, Naperville,
Bolingbrook, La Salle, Hammond, Oxford, Woodstock, Oswego,
Wilmington, Streator, Gary, Crystal Lake, Buffalo Grove, DeKalb,
Dwight, Gurnee, Fairbury, Mendota, Mundelein, Byron, Plano,
Kankakee, Algonquin, Elgin, Lombard, Rochelle, Yorkville,
Manhattan, Joliet, Aurora, Coal City, Crete, Rensselaer,
Valparaiso, McHenry, Gibson City, Peotone, Ottawa, Waukegan,
Watseka, and Morocco
1027 AM CDT Sat Jun 21 2025 /1127 AM EDT Sat Jun 21 2025/

...HEAT ADVISORY REMAINS IN EFFECT UNTIL MIDNIGHT CDT /1 AM EDT/
MONDAY NIGHT...

* WHAT...Peak afternoon heat index values around 105 degrees
expected.

* WHERE...Portions of central, east central, north central, and
northeast Illinois and northwest Indiana.

* WHEN...Until midnight CDT /1 AM EDT/ Monday Night.

* IMPACTS...Hot temperatures and high humidity may cause heat
illnesses.

* ADDITIONAL DETAILS...Heat impacts will be worsened by consecutive
days of hot and humid conditions, with overnight lows in the mid
70s providing little relief.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.

Monitor the latest forecasts and warnings for updates.

&&


https://wxn.io/34euh

Hazardous Weather Outlook for McHenry Co., IL

C: Mchenrycountywx | L: Woodstock | PL: McHenry County WX

FLUS43 KLOT 211517
HWOLOT

Hazardous Weather Outlook
National Weather Service Chicago/Romeoville IL
1017 AM CDT Sat Jun 21 2025


Winnebago-Boone-McHenry-Lake IL-Ogle-Lee-De Kalb-Kane-DuPage-
La Salle-Kendall-Grundy-Kankakee-Livingston-Iroquois-Ford-
Northern Cook-Central Cook-Southern Cook-Northern Will-
Southern Will-Eastern Will-Lake IN-Porter-Newton-Jasper-Benton-
1017 AM CDT Sat Jun 21 2025 /1117 AM EDT Sat Jun 21 2025/

This Hazardous Weather Outlook is for portions of north central
Illinois...northeast Illinois and northwest Indiana.

.DAY ONE...Today and Tonight.

Weather hazards expected...

Significant Excessive Heat Risk.

DISCUSSION...

Heat indices above 100 degrees are expected this afternoon with
heat indices likely to remain in the 90s much of this evening.
Only minimal relief from the heat expected late tonight.

Strong southwest winds are expected today with gusts up to 35 to
45 mph for areas near and north of I-80.

.DAYS TWO THROUGH SEVEN...Sunday through Friday.

Sunday...
Significant Excessive Heat Risk.
Monday...
Significant Excessive Heat Risk.
Limited Thunderstorm Risk Monday night.
Tuesday through Thursday...
Limited Thunderstorm Risk.
Limited Excessive Heat Risk.

DISCUSSION...

Dangerous heat and humidity will continue into next week.

.SPOTTER INFORMATION STATEMENT...

Spotter activation will not be necessary through tonight.


https://wxn.io/8jpsu