10-Day Weather Forecast - Illiopolis, IL

Showers with a chance of thunderstorms in the morning, then partly sunny in the afternoon. Humid with highs in the upper 80s. Southeast winds 5 to 10 mph with gusts up to 20 mph, becoming southwest in the afternoon. Chance of rain near 100 percent. Heat index values up to 102 in the afternoon.

Partly cloudy. A chance of showers and thunderstorms after midnight. Humid with lows in the mid 70s. Southwest winds 5 to 10 mph. Chance of rain 40 percent.

Partly sunny. A chance of showers and thunderstorms in the morning. Humid with highs in the upper 80s. West winds 5 to 10 mph. Chance of rain 30 percent. Heat index values up to 100.

Partly cloudy. Humid with lows in the upper 60s. Northwest winds 5 to 10 mph.

Mostly sunny. Highs in the mid 80s.

Mostly clear. Lows in the mid 60s.

Mostly clear. Highs in the mid 80s.

Mostly clear in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 50 percent.

Partly sunny. A chance of showers and thunderstorms in the morning. Highs in the mid 80s. Chance of rain 50 percent.

Partly cloudy. Lows in the lower 60s.

Partly cloudy. Highs in the upper 70s.

Partly cloudy. Lows in the lower 60s.

Partly cloudy. Highs in the upper 70s.

Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 63F. Dew point will be around 63F with an average humidity of 84%. Winds will be 2 mph from the E.

Sunny. High temperature around 78F. Dew point will be around 64F with an average humidity of 74%. Winds will be 1 mph from the N.

Clear. Low temperature around 62F. Dew point will be around 63F with an average humidity of 84%. Winds will be 3 mph from the E.

Sunny. High temperature around 80F. Dew point will be around 63F with an average humidity of 73%. Winds will be 1 mph from the E.

Clear. Low temperature around 65F. Dew point will be around 64F with an average humidity of 81%. Winds will be 2 mph from the SE.