10-Day Weather Forecast - Harristown, IL

Mostly cloudy in the morning then becoming partly sunny. A chance of flurries. Breezy and much cooler with highs in the mid 30s. Temperature falling into the upper 20s in the afternoon. Northwest winds 15 to 25 mph with gusts up to 35 mph.

Mostly clear. Much cooler with lows around 14. Northwest winds 10 to 15 mph. Gusts up to 30 mph in the evening.

Sunny. Highs in the upper 20s. Northwest winds around 10 mph becoming west in the afternoon.

Mostly cloudy with a 50 percent chance of snow showers. Lows in the lower 20s. Temperature rising to around 30 after midnight.

Mostly cloudy. A chance of snow showers in the afternoon. Not as cool with highs in the upper 30s. Chance of snow 30 percent.

Mostly cloudy. Lows around 15. Highs in the lower 20s. Wind chill values as low as zero.

Mostly cloudy. Lows around 15. Highs in the lower 20s. Wind chill values as low as zero.

Mostly cloudy. Lows 5 to 10 above. Highs around 20. Wind chill values as low as 10 below.

Mostly cloudy. Lows 5 to 10 above. Highs around 20. Wind chill values as low as 10 below.

Partly cloudy. Lows 5 to 10 above. Highs in the mid 20s. Wind chill values as low as 10 below.

Partly cloudy. Lows 5 to 10 above. Highs in the mid 20s. Wind chill values as low as 10 below.

Partly cloudy. Low temperature around 13F. Dew point will be around 7F with an average humidity of 72%. Winds will be 8 mph from the NW.

Sunny. High temperature around 26F. Dew point will be around 11F with an average humidity of 67%. Winds will be 4 mph from the SW.

Mostly clear. Low temperature around 22F. Dew point will be around 14F with an average humidity of 72%. Winds will be 6 mph from the S.

Mostly cloudy. High temperature around 33F. Dew point will be around 23F with an average humidity of 74%. Winds will be 7 mph from the S.

Partly cloudy. Low temperature around 27F. Dew point will be around 25F with an average humidity of 86%. Winds will be 3 mph from the S.

Cloudy with a slight chance of rain-snow mix. Chance of precipitation 30%. High temperature around 35F. Dew point will be around 28F with an average humidity of 83%. Winds will be 3 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 33F. Dew point will be around 31F with an average humidity of 90%. Winds will be 3 mph from the SE.