10-Day Weather Forecast - Harrison, SD

Mostly sunny. Cooler with highs around 18. West winds 10 to 15 mph. Wind chill values as low as 20 below.

Partly cloudy. Cold with lows around 1 above. Northwest winds 5 to 10 mph becoming west after midnight.

Partly sunny in the morning then cloudy with a slight chance of snow in the afternoon. Not as cool with highs in the upper 20s. South winds 10 to 15 mph. Chance of snow 20 percent.

Mostly cloudy. Not as cold with lows around 14. Northwest winds 10 to 15 mph.

Partly sunny with a 20 percent chance of snow. Breezy with highs in the upper 20s.

Partly cloudy. Cold with lows around 5 above.

Partly sunny. Highs in the mid 20s.

Mostly cloudy. Cold with lows around zero. Wind chill values as low as 15 below after midnight.

Mostly cloudy. Colder with highs around 10 above. Wind chill values as low as 15 below.

Mostly cloudy. Cold with lows 5 below to 10 below zero. Wind chill values as low as 25 below.

Mostly cloudy with a 20 percent chance of snow. Cold with highs 5 to 10 above. Wind chill values as low as 25 below.

Mostly cloudy in the evening then becoming partly cloudy. A 20 percent chance of snow. Cold with lows 5 below to 10 below zero. Wind chill values as low as 20 below.

Mostly sunny. Cold with highs around 15. Wind chill values as low as 20 below.

Mostly clear. Low temperature around 2F. Dew point will be around -2F with an average humidity of 77%. Winds will be 3 mph from the SE.

Partly cloudy. High temperature around 15F. Dew point will be around 3F with an average humidity of 72%. Winds will be 2 mph from the S.

Partly cloudy. Low temperature around 7F. Dew point will be around 5F with an average humidity of 78%. Winds will be 1 mph from the SW.

Mostly cloudy. High temperature around 17F. Dew point will be around 8F with an average humidity of 75%. Winds will be 4 mph from the NW.

Partly cloudy. Low temperature around 7F. Dew point will be around 6F with an average humidity of 80%. Winds will be 4 mph from the NW.