10-Day Weather Forecast - Collinsville, IL

Sunny. Highs in the lower 80s. East winds around 5 mph becoming southwest in the afternoon.

Mostly clear. Not as cool with lows in the lower 60s. South winds 5 to 10 mph.

Mostly sunny. Highs in the mid 80s. Southwest winds 5 to 10 mph becoming west 10 to 15 mph in the afternoon.

Mostly cloudy in the evening then clearing. Much cooler with lows around 40.

Sunny. Much cooler with highs in the upper 50s.

Mostly clear in the evening then becoming mostly cloudy. Lows around 40.

Mostly cloudy in the morning then becoming mostly sunny. Highs around 60.

Partly cloudy in the evening then mostly cloudy with a slight chance of rain and thunderstorms after midnight. Lows in the lower 40s. Chance of rain 20 percent.

Mostly cloudy in the morning then becoming partly sunny. Highs in the upper 60s.

Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 50s.

Sunny. A slight chance of rain in the afternoon. Not as cool with highs in the upper 70s. Chance of rain 20 percent.

Mostly clear with a chance of rain. Chance of precipitation 40%. Low temperature around 46F. Dew point will be around 42F with an average humidity of 53%. Winds will be 10 mph from the N.

Mostly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 54F. Dew point will be around 32F with an average humidity of 49%. Winds will be 9 mph from the NE.

Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 35F. Dew point will be around 28F with an average humidity of 58%. Winds will be 9 mph from the NE.

Cloudy. High temperature around 50F. Dew point will be around 30F with an average humidity of 57%. Winds will be 7 mph from the E.

Cloudy. Low temperature around 39F. Dew point will be around 33F with an average humidity of 65%. Winds will be 5 mph from the E.

Cloudy. High temperature around 58F. Dew point will be around 39F with an average humidity of 63%. Winds will be 5 mph from the E.

Cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 46F. Dew point will be around 42F with an average humidity of 70%. Winds will be 3 mph from the E.