10-Day Weather Forecast - Harrisburg, IL

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

Mostly clear in the evening then becoming partly cloudy. Not as cool with lows in the upper 20s. South winds 10 to 15 mph. Gusts up to 30 mph after midnight.

Mostly sunny. Highs in the mid 40s. Southwest winds 10 to 15 mph with gusts up to 30 mph.

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 20s.

Partly cloudy. Highs in the upper 30s. Lows 15 to 20.

Partly cloudy. Highs in the upper 30s. Lows 15 to 20.

Mostly cloudy. Highs in the mid 20s.

Mostly cloudy with a 30 percent chance of snow showers. Cold with lows around 5 above. Wind chill readings as low as 5 below after midnight.

Mostly cloudy with a 40 percent chance of snow showers. Highs 15 to 20. Lows 5 to 10 above. Wind chill readings as low as zero.

Mostly cloudy with a 40 percent chance of snow showers. Highs 15 to 20. Lows 5 to 10 above. Wind chill readings as low as zero.

Mostly sunny. Highs in the lower 20s.

Clear. Low temperature around 9F. Dew point will be around 3F with an average humidity of 67%. Winds will be 2 mph from the W.

Sunny. High temperature around 25F. Dew point will be around 7F with an average humidity of 60%. Winds will be 2 mph from the SW.

Mostly clear. Low temperature around 15F. Dew point will be around 9F with an average humidity of 74%. Winds will be 3 mph from the SW.

Partly cloudy. High temperature around 27F. Dew point will be around 14F with an average humidity of 68%. Winds will be 2 mph from the S.

Cloudy. Low temperature around 18F. Dew point will be around 14F with an average humidity of 75%. Winds will be 1 mph from the NW.

Mostly cloudy. High temperature around 27F. Dew point will be around 14F with an average humidity of 67%. Winds will be 2 mph from the NW.

Clear. Low temperature around 13F. Dew point will be around 10F with an average humidity of 73%. Winds will be 2 mph from the NW.