Headline:
Extreme Heat Warning issued July 27 at 9:33AM CDT until July 27 at 9:00PM CDT by NWS Chicago IL
Event:
Extreme Heat Warning
Urgency:
Expected
Effective:
July 27, 2026 - 7:33am
Expires:
July 27, 2026 - 5:45pm
Description:
* WHAT...Dangerously hot conditions with peak heat index values 110
to locally over 115 degrees expected.
* WHERE...Iroquois, Boone, Eastern Will, Kane, Kankakee, Kendall,
McHenry, Northern Will, and Southern Will Counties.
* WHEN...Until 9 PM CDT this evening.
* IMPACTS...Heat related illnesses increase significantly during
extreme heat and high humidity events.
Instruction:
Drink plenty of fluids, stay in an air-conditioned room, stay out of
the sun, and check up on relatives and neighbors.
Area Description:
Boone; McHenry; Kane; Kendall; Kankakee; Iroquois; Northern Will; Southern Will; Eastern Will
Forcast Office:
NWS Chicago IL
Sender: