10-Day Weather Forecast - Illiopolis, IL

Sunny. Highs around 80. Southeast winds 5 to 10 mph becoming southwest in the afternoon.

Mostly clear. Not as cool with lows in the upper 50s. South winds 10 to 15 mph with gusts up to 25 mph.

Mostly sunny. Highs in the lower 80s. Southwest winds around 15 mph becoming west in the afternoon.

Mostly cloudy in the evening then clearing. Much cooler with lows in the upper 30s.

Sunny. Much cooler with highs in the mid 50s.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the upper 30s.

Mostly cloudy. Highs in the lower 60s. Lows around 40.

Mostly cloudy. Highs in the lower 60s. Lows around 40.

Mostly cloudy. Highs in the lower 60s. Lows around 40.

Partly cloudy. Lows in the upper 40s. Highs in the mid 70s.

Partly cloudy. Lows in the upper 40s. Highs in the mid 70s.

Partly cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 40F. Dew point will be around 37F with an average humidity of 52%. Winds will be 11 mph from the N.

Cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 48F. Dew point will be around 26F with an average humidity of 51%. Winds will be 8 mph from the N.

Cloudy. Low temperature around 31F. Dew point will be around 24F with an average humidity of 60%. Winds will be 8 mph from the NE.

Mostly cloudy. High temperature around 49F. Dew point will be around 24F with an average humidity of 50%. Winds will be 5 mph from the E.

Cloudy. Low temperature around 36F. Dew point will be around 29F with an average humidity of 63%. Winds will be 4 mph from the E.

Cloudy. High temperature around 54F. Dew point will be around 34F with an average humidity of 60%. Winds will be 4 mph from the E.

Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 42F. Dew point will be around 38F with an average humidity of 71%. Winds will be 4 mph from the E.