10-Day Weather Forecast - Gann Valley, SD

Mostly cloudy with a chance of snow in the morning then partly sunny in the afternoon. Little or no snow accumulation. Very windy and much colder with highs in the lower 20s. Northwest winds 30 to 40 mph with gusts up to 60 mph. Chance of snow 30 percent.

Mostly clear in the evening then becoming mostly cloudy. Lows around 9 above. Northwest winds 10 to 15 mph becoming east after midnight.

Partly sunny. Not as cold with highs in the lower 40s. Southeast winds 15 to 20 mph.

Mostly cloudy. Not as cold with lows in the mid 20s. Southeast winds 5 to 10 mph becoming northwest with gusts up to 20 mph after midnight.

Partly cloudy. Highs in the mid 30s. Lows around 20.

Partly cloudy. Highs in the mid 30s. Lows around 20.

Mostly cloudy. Highs in the upper 30s. Lows in the upper 20s.

Mostly cloudy. Highs in the upper 30s. Lows in the upper 20s.

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

Mostly cloudy. Lows in the mid 20s. Highs in the upper 30s.

Mostly cloudy. Lows in the mid 20s. Highs in the upper 30s.

Mostly cloudy. Lows in the mid 20s. Highs in the upper 30s.

Partly sunny. Highs in the mid 40s.

Partly cloudy. Low temperature around 31F. Dew point will be around 30F with an average humidity of 88%. Winds will be 2 mph from the SE.

Partly cloudy. High temperature around 37F. Dew point will be around 29F with an average humidity of 78%. Winds will be 2 mph from the SE.

Mostly cloudy. Low temperature around 28F. Dew point will be around 27F with an average humidity of 84%. Winds will be 2 mph from the N.

Mostly cloudy. High temperature around 30F. Dew point will be around 23F with an average humidity of 78%. Winds will be 4 mph from the NW.

Cloudy. Low temperature around 22F. Dew point will be around 20F with an average humidity of 80%. Winds will be 2 mph from the N.