10-Day Weather Forecast - Gann Valley, SD

Mostly sunny. Highs in the upper 30s. Northwest winds 15 to 20 mph with gusts up to 30 mph.

Mostly clear. Colder with lows around 16. Northeast winds 5 to 10 mph becoming south after midnight.

Partly sunny. Highs in the lower 40s. Southeast winds 10 to 15 mph.

Mostly cloudy. Not as cold with lows in the upper 20s.

Partly sunny. Not as cool with highs in the lower 50s.

Mostly cloudy. Lows in the upper 20s. Highs in the lower 40s.

Mostly cloudy. Lows in the upper 20s. Highs in the lower 40s.

Mostly cloudy. Lows in the upper 20s. Highs in the lower 40s.

Partly cloudy. Highs in the mid 50s. Lows in the lower 30s.

Partly cloudy. Highs in the mid 50s. Lows in the lower 30s.

Partly sunny. Highs in the upper 40s.

Partly cloudy. Low temperature around 31F. Dew point will be around 29F with an average humidity of 79%. Winds will be 5 mph from the S.

Mostly sunny. High temperature around 45F. Dew point will be around 29F with an average humidity of 71%. Winds will be 5 mph from the S.

Partly cloudy. Low temperature around 29F. Dew point will be around 28F with an average humidity of 81%. Winds will be 3 mph from the NW.

Mostly sunny. High temperature around 34F. Dew point will be around 24F with an average humidity of 72%. Winds will be 4 mph from the NW.

Clear. Low temperature around 25F. Dew point will be around 22F with an average humidity of 78%. Winds will be 4 mph from the NW.

Sunny. High temperature around 31F. Dew point will be around 21F with an average humidity of 71%. Winds will be 2 mph from the NW.

Clear. Low temperature around 26F. Dew point will be around 21F with an average humidity of 77%. Winds will be 4 mph from the S.