Illinois Weather: 06-28-2026 6AM CDT - Extreme Heat

Your morning Illinois weather update Active alerts: Heat Advisory, Dense Fog Advisory, Dense Fog Advisory. around 74 degrees Good morning, Illinois. If you're east of I-55 this morning, you're driving through soup, dense fog has visibility down to a quarter mile near Champaign, Bloomington. Take it slow until 8 A.M.