10-Day Weather Forecast - Illiopolis, IL

Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds 5 to 10 mph, becoming west in the afternoon. Chance of rain 20 percent.

Mostly clear. Lows in the lower 60s. Northwest winds 5 to 10 mph.

Sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph.

Mostly clear. Lows in the lower 60s. North winds around 5 mph in the evening, becoming light and variable.

Mostly clear. Highs in the mid 80s.

Mostly clear. Lows around 60.

Partly cloudy. Highs in the upper 80s.

Partly cloudy. Lows in the mid 60s.

Partly cloudy. Highs in the upper 80s.

Partly cloudy. Lows in the lower 70s.

Partly cloudy. Highs in the lower 90s.

Partly cloudy. A chance of showers after midnight. Lows in the lower 70s. Chance of rain 30 percent.

Mostly sunny. Highs around 90.

Mostly clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 68F. Dew point will be around 67F with an average humidity of 77%. Winds will be 1 mph from the SE.

Sunny with a 25% chance for rain and thunderstorms. High temperature around 86F. Dew point will be around 68F with an average humidity of 68%. Winds will be 2 mph from the S.

Mostly clear with widely scattered thunderstorms. Chance of storms 25%. Low temperature around 67F. Dew point will be around 67F with an average humidity of 78%. Winds will be 2 mph from the SE.

Mostly sunny with a 25% chance for rain and thunderstorms. High temperature around 85F. Dew point will be around 66F with an average humidity of 68%. Winds will be 2 mph from the SE.

Mostly clear with a 25% chance for rain and thunderstorms. Low temperature around 66F. Dew point will be around 66F with an average humidity of 79%. Winds will be 3 mph from the SE.