Weather Alerts For Streamwood, IL

# HEADLINE -------------------- EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL MIDNIGHT CDT THURSDAY NIGHT # DETAILS -------------------- WHAT Dangerously hot conditions with peak afternoon heat index values of 102 to 107 degrees. WHERE Cook County. WHEN Until midnight CDT Thursday Night. IMPACTS Heat related illnesses increase significantly during extreme heat and high humidity events. ADDITIONAL DETAILS Stifling heat will continue even at night with heat indices remaining above 90 degrees until midnight or just after. ISSUED AT Wednesday, July 1, 2026 at 2:30 AM CDT ISSUED BY National Weather Service Chicago IL HEADER URGENT - WEATHER MESSAGE # 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. The magnitude of anticipated heat, combined with oppressive warmth at night will lead to hazardous conditions, particularly for the elderly and those with pre-existing health conditions. Residents of the city of Chicago can call 3 1 1 to request well being checks for elderly friends or family members, or for information on finding the nearest cooling center. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. # AREAS AFFECTED -------------------- Central Cook, Northern Cook, Southern Cook Including the cities of Northbrook, Oak Lawn, Calumet City, Palatine, Schaumburg, Park Forest, Lemont, La Grange, Oak Park, Oak Forest, Cicero, Evanston, Chicago, Des Plaines, and Orland Park