Belleville, IL

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Weather Forecast for Belleville

Today

A 40 percent chance of showers and thunderstorms, mainly after 11am. Mostly sunny, with a high near 93. Heat index values as high as 102. Light south wind.

Tonight

A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 74. Light and variable wind becoming southeast around 5 mph.

Tuesday

A 40 percent chance of showers and thunderstorms. Cloudy, then gradually becoming mostly sunny, with a high near 92. Heat index values as high as 102. Calm wind becoming south 5 to 9 mph in the afternoon.

Tuesday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. South wind 5 to 7 mph.

Wednesday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. West wind 5 to 7 mph becoming north in the afternoon.

Wednesday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.

Thursday

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.

Thursday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.

Friday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.

Friday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.

Saturday

A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.

Saturday Night

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.

Sunday

A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.