10-Day Weather Forecast - Harrisburg, IL

Mostly cloudy in the morning then becoming partly sunny. Cooler with highs in the lower 40s. Temperature falling into the lower 30s in the afternoon. Northwest winds 15 to 20 mph with gusts up to 30 mph.

Mostly clear. Much cooler with lows around 18. Northwest winds 10 to 15 mph.

Sunny. Highs in the lower 30s. Northwest winds around 5 mph.

Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 20s. Temperature rising into the lower 30s after midnight. Southwest winds 10 to 15 mph.

Mostly cloudy. Highs in the mid 40s. Lows in the lower 20s.

Mostly cloudy. Highs in the mid 40s. Lows in the lower 20s.

Partly sunny. Cooler with highs in the upper 20s.

Partly cloudy in the evening then clearing. Cold with lows around 10 above.

Mostly clear. Highs in the lower 30s. Lows 15 to 20.

Mostly clear. Highs in the lower 30s. Lows 15 to 20.

Mostly sunny. Highs in the mid 30s.

Mostly clear. Lows 10 to 15. Highs in the lower 30s.

Mostly clear. Lows 10 to 15. Highs in the lower 30s.

Mostly clear. Low temperature around 24F. Dew point will be around 14F with an average humidity of 64%. Winds will be 4 mph from the SE.

Partly cloudy. High temperature around 38F. Dew point will be around 22F with an average humidity of 62%. Winds will be 7 mph from the S.

Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 35F. Dew point will be around 30F with an average humidity of 81%. Winds will be 4 mph from the S.

Cloudy with a chance of rain. Chance of precipitation 40%. High temperature around 43F. Dew point will be around 35F with an average humidity of 79%. Winds will be 6 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 42F. Dew point will be around 39F with an average humidity of 89%. Winds will be 4 mph from the SE.