Collinsville, IL

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Weather Forecast for Collinsville

This Afternoon

Scattered showers and thunderstorms. Mostly cloudy, with a high near 89. South wind around 9 mph. Chance of precipitation is 50%.

Tonight

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers and thunderstorms after 1am. Increasing clouds, with a low around 72. South wind 3 to 6 mph. Chance of precipitation is 20%.

Monday

A 30 percent chance of showers and thunderstorms, mainly between 10am and 11am. Partly sunny, with a high near 91. Southwest wind 3 to 6 mph.

Monday Night

Partly cloudy, with a low around 75. Calm wind.

Tuesday

Mostly sunny, with a high near 94. Calm wind.

Tuesday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.

Wednesday

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 90.

Wednesday Night

A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 71.

Thursday

A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 84.

Thursday Night

Mostly cloudy, with a low around 66.

Friday

Mostly sunny, with a high near 84.

Friday Night

Partly cloudy, with a low around 67.

Saturday

Mostly sunny, with a high near 84.