10-Day Weather Forecast - Gann Valley, SD

Mostly cloudy with a 50 percent chance of rain. Breezy with highs in the upper 40s. Northwest winds 15 to 25 mph with gusts up to 35 mph.

Mostly cloudy. Colder with lows in the mid 20s. Northwest winds 15 to 20 mph with gusts up to 30 mph.

Partly sunny. Much colder with highs in the lower 30s. North winds 10 to 15 mph.

Mostly cloudy. Lows in the lower 20s. Southeast winds 5 to 10 mph becoming south with gusts up to 20 mph after midnight.

Partly sunny and windy. Not as cold with highs in the mid 40s.

Mostly cloudy. A slight chance of snow after midnight. Windy with lows in the lower 20s. Chance of snow 20 percent.

Mostly cloudy. A chance of snow mainly in the morning. Very windy and much colder with highs in the upper 20s. Temperature falling into the lower 20s in the afternoon. Chance of snow 50 percent.

Mostly cloudy and brisk colder with lows around 10 above.

Partly cloudy. Highs in the lower 20s. Lows around 5 above.

Partly cloudy. Highs in the lower 20s. Lows around 5 above.

Partly sunny. Highs in the lower 30s.

Partly cloudy in the evening then becoming mostly cloudy. Lows around 10 above.

Partly sunny. Highs in the lower 30s.

Clear. Low temperature around 19F. Dew point will be around 15F with an average humidity of 78%. Winds will be 2 mph from the NW.

Mostly sunny. High temperature around 29F. Dew point will be around 17F with an average humidity of 70%. Winds will be 4 mph from the W.

Mostly clear. Low temperature around 20F. Dew point will be around 17F with an average humidity of 77%. Winds will be 2 mph from the NW.

Partly cloudy. High temperature around 26F. Dew point will be around 16F with an average humidity of 72%. Winds will be 4 mph from the NW.

Mostly cloudy. Low temperature around 16F. Dew point will be around 14F with an average humidity of 79%. Winds will be 3 mph from the NE.