Belleville, IL Weather - Tomorrow’s Forecast

Thursday

Scattered thunderstorms

High:
98°F

Scattered showers and thunderstorms before 11am, then isolated showers and thunderstorms after 3pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 111. Light and variable wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 30%.

Thursday Night

Isolated thunderstorms

Overnight low:
78°F

Isolated showers and thunderstorms before 8pm. Partly cloudy, with a low around 78. Southeast wind 6 to 8 mph becoming south after midnight. Chance of precipitation is 20%.