Active Weather Alerts
Heat Advisory
Issued: 3:32 PM Jul. 23, 2025 – National Weather Service
...HEAT ADVISORY REMAINS IN EFFECT UNTIL 10 PM CDT THURSDAY... * WHAT...Peak afternoon heat index values of 100 to 108 expected. * WHERE...Cook County. * WHEN...Until 10 PM CDT Thursday. * IMPACTS...Hot temperatures and high humidity may cause heat illnesses. * ADDITIONAL DETAILS...It will be stifling in the city of Chicago, even at night. Heat indices will remain in the 90s through the evening hours, only falling below 90 degrees for a few hours late tonight into early Thursday morning. 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. Residents of the city of Chicago can call 3 1 1 to access city services, including seeking well being checks and for the location of the nearest cooling center. &&
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