Weather Alerts For Glenview, IL

# HEADLINE -------------------- EXTREME HEAT WATCH IN EFFECT FROM MONDAY AFTERNOON THROUGH WEDNESDAY EVENING # DETAILS -------------------- WHAT Dangerously hot conditions with heat index values around 105 possible. WHERE Cook County. WHEN From Monday afternoon through Wednesday evening. IMPACTS Heat related illnesses increase significantly during extreme heat and high humidity events. ISSUED AT Saturday, June 27, 2026 at 11:51 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. 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 La Grange, Calumet City, Lemont, Orland Park, Park Forest, Evanston, Oak Park, Palatine, Cicero, Des Plaines, Schaumburg, Chicago, Oak Forest, Oak Lawn, and Northbrook