Belleville, IL Weather - Tomorrow’s Forecast

Sunday

Mostly sunny

High:
89°F

Mostly sunny, with a high near 89. South wind 7 to 14 mph becoming northwest in the afternoon. Winds could gust as high as 22 mph.

Sunday Night

Slight chance thunderstorms and breezy

Overnight low:
39°F

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, then gradually becoming mostly clear, with a low around 39. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.