Belleville, IL Weather - Tomorrow’s Forecast

Friday

Mostly cloudy

High:
79°F

Mostly cloudy, with a high near 79. East wind 5 to 7 mph.

Friday Night

Mostly cloudy

Overnight low:
64°F

A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 64. East wind around 5 mph becoming calm in the evening.