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
