10-Day Weather Forecast - Illiopolis, IL

Sunny cooler with highs in the lower 50s. West winds 10 to 15 mph.

Mostly cloudy in the evening then becoming partly cloudy. Breezy and not as cool with lows in the lower 40s. South winds 15 to 25 mph with gusts up to 35 mph.

Partly sunny. Highs in the mid 50s. West winds 15 to 20 mph with gusts up to 30 mph.

Mostly cloudy. Lows in the lower 30s. Northwest winds 5 to 10 mph with gusts up to 20 mph becoming north after midnight.

Mostly cloudy. Highs in the mid 50s.

Cloudy. Not as cool with lows in the mid 40s.

Rain likely in the morning then rain in the afternoon. Windy with highs in the lower 60s. Chance of rain 90 percent.

Mostly cloudy. A chance of rain and snow in the evening. Windy and much cooler with lows around 20. Chance of precipitation 40 percent.

Partly sunny and brisk. Much cooler with highs around 30.

Mostly clear. Lows 10 to 15.

Mostly sunny. Highs in the mid 30s.

Mostly cloudy. Lows in the upper 20s. Highs around 50.

Mostly cloudy. Lows in the upper 20s. Highs around 50.

Partly cloudy. Low temperature around 32F. Dew point will be around 31F with an average humidity of 82%. Winds will be 3 mph from the SE.

Mostly sunny. High temperature around 54F. Dew point will be around 37F with an average humidity of 75%. Winds will be 7 mph from the S.

Partly cloudy. Low temperature around 44F. Dew point will be around 42F with an average humidity of 79%. Winds will be 7 mph from the S.

Partly cloudy. High temperature around 63F. Dew point will be around 47F with an average humidity of 75%. Winds will be 9 mph from the SW.

Mostly clear. Low temperature around 45F. Dew point will be around 45F with an average humidity of 75%. Winds will be 2 mph from the W.