10-Day Weather Forecast - Harrisburg, IL

Sunny. Highs in the lower 40s. Southwest winds around 5 mph.

Mostly clear in the evening then becoming partly cloudy. Lows in the upper 20s. Southwest winds around 5 mph.

Mostly sunny. Highs in the mid 40s. West winds around 5 mph becoming northwest around 5 mph in the afternoon.

Mostly cloudy. Lows in the upper 20s. Calm winds becoming east around 5 mph after midnight.

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 cloudy. Highs in the mid 30s. Lows in the lower 20s.

Partly cloudy. Highs in the mid 30s. Lows in the lower 20s.

Mostly sunny. Highs in the mid 40s.

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

Mostly cloudy. A chance of showers in the afternoon. Highs in the upper 40s. Chance of rain 30 percent.

Mostly cloudy. Lows in the mid 20s. Highs in the mid 30s.

Mostly cloudy. Lows in the mid 20s. Highs in the mid 30s.

Clear. Low temperature around 27F. Dew point will be around 22F with an average humidity of 75%. Winds will be 2 mph from the NW.

Sunny. High temperature around 33F. Dew point will be around 20F with an average humidity of 65%. Winds will be 2 mph from the W.

Clear. Low temperature around 28F. Dew point will be around 22F with an average humidity of 76%. Winds will be 1 mph from the NW.

Sunny. High temperature around 34F. Dew point will be around 23F with an average humidity of 70%. Winds will be 1 mph from the S.

Clear. Low temperature around 32F. Dew point will be around 26F with an average humidity of 74%. Winds will be 3 mph from the S.