National Weather Service United States Department of Commerce

Scattered severe thunderstorms across northern Illinois into central Indiana may head our way later this evening, bringing a risk for severe weather overnight. Uncertainty remains high in the precise track and timing of these storms, but they could bring damaging wind gusts up to 70 mph, along with torrential rain.
Afternoon peak heat index values are expected to be between 100 and 110 F mainly along and west of I-65 where a Heat Advisory is in effect. Farther east, values will peak between 95 and 105 F.
Forecast information for the first 12 hours of the Forecast. Graphic Displays temperatures, precipitation chances, wind direction, and wind speeds for the first 12 hours of the forecast.
Forecast information for the 12-24 hour forecast. Graphic displays temperatures, precipitation chances, wind direction, and wind speeds for the 12-24 hour period of the forecast.