10-Day Weather Forecast - Spearfish, SD

Mostly sunny in the morning then becoming partly cloudy. Highs in the mid 60s. Northwest winds 10 to 15 mph with gusts up to 25 mph.

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 40s. West winds 10 to 15 mph.

Partly cloudy and breezy. Highs in the lower 70s. West winds 10 to 20 mph with gusts up to 30 mph increasing to northwest 20 to 30 mph with gusts up to 45 mph in the afternoon.

Partly cloudy and breezy. Lows in the lower 50s. Northwest winds 15 to 25 mph with gusts up to 45 mph becoming southwest 5 to 10 mph after midnight.

Partly cloudy. Highs around 80.

Partly cloudy. Lows in the upper 50s.

Partly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Very windy with highs in the lower 70s. Chance of rain 40 percent.

Partly cloudy in the evening then clearing. Breezy with lows in the upper 40s.

Partly cloudy in the morning then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 20 percent.

Mostly clear. Lows around 50.

Mostly sunny. Highs in the lower 80s.

Mostly clear in the evening then becoming partly cloudy. Lows in the mid 50s.

Partly cloudy. A slight chance of showers in the morning then a chance of showers and thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 40 percent.

Mostly clear with a 60% chance for rain and thunderstorms. Low temperature around 59F. Dew point will be around 51F with an average humidity of 67%. Winds will be 4 mph from the SE.

Mostly cloudy with a 75% chance for rain and thunderstorms. High temperature around 74F. Dew point will be around 54F with an average humidity of 61%. Winds will be 7 mph from the E.

Partly cloudy with a 60% chance for rain and thunderstorms. Low temperature around 58F. Dew point will be around 53F with an average humidity of 70%. Winds will be 6 mph from the SE.

Mostly sunny with a 55% chance for rain and thunderstorms. High temperature around 77F. Dew point will be around 57F with an average humidity of 61%. Winds will be 5 mph from the E.

Mostly cloudy with a 55% chance for rain and thunderstorms. Low temperature around 59F. Dew point will be around 54F with an average humidity of 70%. Winds will be 4 mph from the S.