Heat Advisory for McHenry Co., IL until 8:00 PM CDT 7/28

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

WWUS73 KLOT 280856
NPWLOT

URGENT - WEATHER MESSAGE
National Weather Service Chicago IL
356 AM CDT Mon Jul 28 2025


/O.CON.KLOT.HT.Y.0003.250728T1700Z-250729T0100Z/
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-
Including the cities of Chicago, Plano, Byron, Wheaton, Fowler,
Aurora, Buffalo Grove, Algonquin, Evanston, Morris, Cicero,
Belvidere, Gibson City, Gilman, Paxton, Naperville, Beecher,
Watseka, Mendota, Gurnee, Oak Forest, Mokena, Streator, Hammond,
Lemont, Valparaiso, Chesterton, Plainfield, Crystal Lake, Oswego,
Rensselaer, Woodstock, McHenry, Rochelle, Dwight, Pontiac,
Oregon, Calumet City, Peotone, Elgin, Dixon, Palatine, Manhattan,
Oxford, Sycamore, Bourbonnais, Schaumburg, Park Forest, DeMotte,
Morocco, Rockford, Carol Stream, Orland Park, Crete, Roselawn,
Gary, Joliet, Bradley, Northbrook, DeKalb, Waukegan, Yorkville,
La Salle, Minooka, Mundelein, Oak Park, Downers Grove, Ottawa,
Oak Lawn, Channahon, Merrillville, Portage, La Grange,
Bolingbrook, Coal City, Marseilles, Wilmington, Lombard,
Kankakee, Fairbury, Kentland, and Des Plaines
356 AM CDT Mon Jul 28 2025 /456 AM EDT Mon Jul 28 2025/

...HEAT ADVISORY REMAINS IN EFFECT FROM NOON CDT /1 PM EDT/ TODAY TO
8 PM CDT /9 PM EDT/ THIS EVENING...

* WHAT...Heat index values up to 105 to 109 expected.

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

* WHEN...From noon CDT /1 PM EDT/ today to 8 PM CDT /9 PM EDT/ this
evening.

* 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.

&&


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