10-Day Weather Forecast - Spearfish, SD

Partly cloudy. Highs in the upper 40s. West winds 10 to 15 mph with gusts up to 25 mph.

Clear breezy with lows in the upper 30s. West winds 10 to 15 mph increasing to 15 to 25 mph with gusts up to 40 mph after midnight.

Mostly sunny in the morning then becoming partly cloudy. Windy with highs in the mid 40s. Northwest winds 25 to 35 mph with gusts up to 50 mph.

Partly cloudy. A slight chance of snow after midnight. Strong winds with lows in the lower 20s. Northwest winds 25 to 40 mph with gusts up to 60 mph increasing to 35 to 50 mph with gusts up to 70 mph after midnight. Chance of snow 20 percent.

Becoming partly cloudy. Strong winds with highs in the upper 20s.

Partly cloudy and breezy. Lows around 20.

Partly cloudy and breezy. Highs in the lower 40s.

Partly cloudy in the evening then clearing. Breezy with lows in the upper 20s.

Mostly sunny and breezy. Highs in the mid 40s.

Mostly clear. Lows in the lower 20s.

Mostly sunny. Highs around 40.

Partly cloudy. Lows in the lower 20s.

Partly cloudy. Highs in the mid 40s.

Partly cloudy. Low temperature around 31F. Dew point will be around 16F with an average humidity of 47%. Winds will be 2 mph from the W.

Partly cloudy. High temperature around 36F. Dew point will be around 15F with an average humidity of 47%. Winds will be 1 mph from the NW.

Mostly cloudy with a slight chance of snow. Chance of precipitation 25%. Low temperature around 25F. Dew point will be around 15F with an average humidity of 59%. Winds will be 2 mph from the NE.

Cloudy with a chance of snow. Chance of precipitation 35%. High temperature around 27F. Dew point will be around 13F with an average humidity of 62%. Winds will be 4 mph from the NE.

Cloudy with a chance of snow. Chance of precipitation 35%. Low temperature around 17F. Dew point will be around 12F with an average humidity of 73%. Winds will be 2 mph from the NE.