Collinsville, IL

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Weather Forecast for Collinsville

Overnight

Isolated showers and thunderstorms. Cloudy, with a low around 67. Light south wind. Chance of precipitation is 20%.

Monday

A 50 percent chance of showers and thunderstorms. Cloudy, with a high near 80. Calm wind becoming northeast around 6 mph in the afternoon.

Monday Night

A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 66. North wind around 5 mph becoming calm in the evening.

Tuesday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83. Calm wind becoming north around 6 mph in the afternoon.

Tuesday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67. North wind around 6 mph becoming calm.

Wednesday

Showers and thunderstorms. High near 82. Chance of precipitation is 80%.

Wednesday Night

A 40 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 65.

Thursday

A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 80.

Thursday Night

Partly cloudy, with a low around 64.

Friday

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

Friday Night

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

Saturday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 90.

Saturday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.

Sunday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.