10-Day Weather Forecast - Illiopolis, IL

Patchy blowing snow in the morning. Sunny. Not as cool with highs around 30. Southwest winds 10 to 15 mph with gusts up to 25 mph. Wind chill values as low as 10 below in the morning.

Partly cloudy in the evening then becoming mostly clear. Not as cool with lows around 20. Southwest winds 5 to 10 mph.

Sunny. Highs in the upper 30s. South winds 5 to 10 mph.

Mostly cloudy. Lows in the upper 20s. Southwest winds 5 to 10 mph.

Mostly sunny. Highs in the lower 40s.

Mostly cloudy. A chance of rain after midnight. Lows in the mid 30s. Temperature rising into the mid 40s after midnight. Chance of rain 30 percent.

Mostly cloudy with rain likely in the morning then mostly sunny with a chance of rain in the afternoon. Not as cool with highs in the lower 50s. Temperature falling into the mid 30s in the afternoon. Chance of rain 60 percent.

Partly cloudy. Lows 10 to 15. Highs in the lower 30s.

Partly cloudy. Lows 10 to 15. Highs in the lower 30s.

Mostly cloudy. Lows in the upper 20s. Highs in the upper 40s.

Mostly cloudy. Lows in the upper 20s. Highs in the upper 40s.

Mostly cloudy. Lows in the upper 20s. Highs in the upper 40s.

Mostly sunny. Highs around 40.

Clear. Low temperature around 29F. Dew point will be around 23F with an average humidity of 77%. Winds will be 5 mph from the E.

Partly cloudy. High temperature around 42F. Dew point will be around 29F with an average humidity of 69%. Winds will be 8 mph from the SE.

Cloudy. Low temperature around 39F. Dew point will be around 35F with an average humidity of 83%. Winds will be 8 mph from the S.

Cloudy. High temperature around 46F. Dew point will be around 38F with an average humidity of 79%. Winds will be 4 mph from the SW.

Cloudy. Low temperature around 36F. Dew point will be around 34F with an average humidity of 82%. Winds will be 1 mph from the NE.