Chicago, Illinois – A stretch of unsettled weather will keep northern Illinois damp through midweek, with scattered showers and thunderstorms possible each day until Wednesday.
According to the National Weather Service in Chicago, the highest risk for storms comes Monday, particularly across northwest and northeast Illinois. Rain chances range from 40 to 60 percent, with locally heavy downpours possible. Sunday and Tuesday also carry a 25 to 50 percent chance of storms, while Wednesday looks slightly drier, with about a 20 to 40 percent risk.
Daytime highs will stay seasonable in the mid-70s to near 80 degrees, though Wednesday may be a few degrees cooler in the upper 60s. Overnight lows will dip into the upper 50s and low 60s, keeping humidity levels high enough to fuel additional storm development.
Drivers in Chicago, Rockford, and along I-90 should watch for sudden downpours reducing visibility and creating ponding on roadways. The weather service recommends limiting outdoor plans during peak storm hours and checking updates for possible advisories if stronger thunderstorms develop.
Showers may continue intermittently until Wednesday evening, with longer dry stretches possible between storm rounds. More updates are expected if new advisories are issued.
Five Day Forecast for Chicago, Illinois
- Sunday: Scattered storms, highs 75–80, lows 62–66.
- Monday: Storm chances 40–60%, highs 75–80, lows 59–65.
- Tuesday: Isolated storms, highs 75–80, lows 60–65.
- Wednesday: Spotty showers, highs 69–75, lows 56–61.
- Thursday: Partly cloudy, highs near 70, lows mid-50s.
