10-Day Weather Forecast - Gann Valley, SD

Mostly cloudy with a slight chance of snow in the morning then partly sunny in the afternoon. Very windy and much colder with highs around 17. Temperature falling to around 10 above in the afternoon. Northwest winds 25 to 35 mph with gusts up to 45 mph. Chance of snow 20 percent.

Mostly cloudy in the evening then becoming partly cloudy. Brisk cold. Near steady temperature around 6 above. Northwest winds 20 to 25 mph with gusts up to 35 mph.

Mostly sunny. Highs around 17. Northwest winds 15 to 20 mph.

Partly cloudy. Lows around 10 above. Highs around 40.

Partly cloudy. Lows around 10 above. Highs around 40.

Mostly cloudy. Lows 15 to 20.

Mostly cloudy with a 20 percent chance of snow. Colder with highs around 30.

Mostly cloudy. Lows zero to 5 above zero. Highs around 20.

Mostly cloudy. Lows zero to 5 above zero. Highs around 20.

Partly cloudy. Lows 5 to 10 above. Highs in the upper 20s.

Partly cloudy. Lows 5 to 10 above. Highs in the upper 20s.

Mostly clear. Low temperature around 19F. Dew point will be around 15F with an average humidity of 79%. Winds will be 6 mph from the SE.

Mostly sunny. High temperature around 29F. Dew point will be around 17F with an average humidity of 73%. Winds will be 6 mph from the NW.

Clear. Low temperature around 18F. Dew point will be around 13F with an average humidity of 76%. Winds will be 3 mph from the N.

Sunny. High temperature around 24F. Dew point will be around 14F with an average humidity of 70%. Winds will be 2 mph from the N.

Clear. Low temperature around 19F. Dew point will be around 15F with an average humidity of 80%. Winds will be 2 mph from the NE.

Mostly sunny. High temperature around 26F. Dew point will be around 15F with an average humidity of 70%. Winds will be 2 mph from the NW.

Clear. Low temperature around 18F. Dew point will be around 15F with an average humidity of 79%. Winds will be 1 mph from the N.