10-Day Weather Forecast - Spearfish, SD

Sunny. Highs in the mid 90s. South winds 10 to 15 mph.

Mostly clear. Lows around 70. South winds 10 to 15 mph.

Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 90s. Southwest winds 5 to 10 mph. Gusts up to 20 mph in the afternoon. Chance of rain 30 percent.

Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 60s.

Partly cloudy. A slight chance of showers in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent.

Partly cloudy with a chance of showers. A chance of thunderstorms in the evening, then a slight chance of thunderstorms after midnight. Lows in the mid 60s. Chance of rain 50 percent.

Mostly cloudy with a slight chance of showers in the morning, then partly cloudy in the afternoon. Highs in the upper 80s. Chance of rain 20 percent.

Partly cloudy in the evening, then clearing. Lows around 60.

Mostly sunny. Highs in the mid 80s.

Mostly clear. Lows in the mid 50s.

Partly cloudy in the morning, then clearing. Highs in the lower 80s.

Mostly clear. Low temperature around 57F. Dew point will be around 49F with an average humidity of 62%. Winds will be 5 mph from the SE.

Partly cloudy with widely scattered thunderstorms. Chance of storms 30%. High temperature around 82F. Dew point will be around 49F with an average humidity of 42%. Winds will be 2 mph from the N.

Partly cloudy with widely scattered thunderstorms. Chance of storms 30%. Low temperature around 60F. Dew point will be around 49F with an average humidity of 54%. Winds will be 5 mph from the S.

Partly cloudy. High temperature around 78F. Dew point will be around 48F with an average humidity of 41%. Winds will be 6 mph from the NW.

Mostly clear. Low temperature around 56F. Dew point will be around 45F with an average humidity of 52%. Winds will be 3 mph from the S.

Sunny. High temperature around 74F. Dew point will be around 44F with an average humidity of 41%. Winds will be 7 mph from the N.

Mostly clear. Low temperature around 54F. Dew point will be around 43F with an average humidity of 54%. Winds will be 3 mph from the S.