Chicago, Illinois – Cooler air off Lake Michigan will keep temperatures mild across the Chicago area through Saturday, but residents should plan for possible afternoon thunderstorms on Sunday.
According to the National Weather Service in Chicago, highs will generally range from 70–78°F statewide, with lower temperatures near the lakefront due to persistent northeast winds. While most of the weekend will stay dry, a few morning showers could linger Thursday in east-central Illinois and northwest Indiana. Rain chances return late Saturday, especially south of I-80, and grow stronger Sunday afternoon with scattered thunderstorms expected across northern Illinois.
Cities like Joliet, Kankakee, and Aurora may see evening showers Saturday, while Chicago and Waukegan could face stormier conditions by late Sunday. Lows will dip into the 50s each night, offering some relief from recent warmth.
Drivers should monitor local road conditions Sunday, especially in areas prone to minor flooding. Boaters and beachgoers near the lake should also prepare for cooler gusts and sudden weather shifts.
This weekend’s pattern reflects a classic early June setup, with lakeside cooling and periodic rain. More updates and any new advisories will be issued by the National Weather Service if storm risks increase.
