10-Day Weather Forecast - Caseyville, IL

Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 90s. Southwest winds around 5 mph, becoming northwest in the afternoon. Chance of rain 20 percent. Heat index values up to 109.

Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. A chance of showers, mainly in the evening. Humid with lows in the lower 70s. North winds 5 to 10 mph. Chance of rain 40 percent. Heat index values up to 107 early in the evening.

Mostly sunny. Highs in the mid 80s. North winds 5 to 10 mph.

Mostly clear. Lows in the mid 60s.

Mostly clear. Highs in the upper 80s.

Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 20 percent.

Partly sunny. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent.

Partly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 40 percent.

Partly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent.

Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the mid 60s. Chance of rain 20 percent.

Mostly sunny. A slight chance of showers in the morning. Highs in the lower 80s. Chance of rain 20 percent.

Clear. Low temperature around 64F. Dew point will be around 63F with an average humidity of 84%. Winds will be 4 mph from the NE.

Sunny. High temperature around 80F. Dew point will be around 66F with an average humidity of 74%. Winds will be 4 mph from the NE.

Clear. Low temperature around 63F. Dew point will be around 65F with an average humidity of 89%. Winds will be 4 mph from the NE.

Sunny. High temperature around 82F. Dew point will be around 66F with an average humidity of 73%. Winds will be 4 mph from the NE.

Clear. Low temperature around 66F. Dew point will be around 66F with an average humidity of 83%. Winds will be 4 mph from the E.

Sunny. High temperature around 85F. Dew point will be around 66F with an average humidity of 67%. Winds will be 3 mph from the NE.

Clear. Low temperature around 68F. Dew point will be around 66F with an average humidity of 77%. Winds will be 4 mph from the E.