10-Day Weather Forecast - Harristown, IL

Sunny. Highs in the upper 70s. Southeast winds 5 to 10 mph becoming southwest in the afternoon.

Mostly clear. Not as cool with lows in the upper 50s. Southwest winds 10 to 15 mph.

Partly sunny. Highs around 80. Southwest winds 10 to 15 mph becoming northwest 15 to 20 mph in the afternoon.

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

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

Mostly cloudy. Lows in the upper 30s. Highs in the upper 50s.

Mostly cloudy. Lows in the upper 30s. Highs in the upper 50s.

Mostly cloudy. Lows in the upper 30s. Highs in the upper 50s.

Mostly cloudy. Lows in the upper 30s. Highs in the upper 50s.

Mostly cloudy. Lows in the upper 40s.

Mostly sunny. Not as cool with 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 53%. 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 48F. Dew point will be around 24F with an average humidity of 51%. 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 53F. Dew point will be around 33F with an average humidity of 61%. 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.