10-Day Weather Forecast - Gann Valley, SD

Mostly cloudy. Highs in the lower 30s. East winds around 5 mph becoming west in the afternoon.

Mostly cloudy. A slight chance of snow in the evening. Near steady temperature in the mid 20s. Northwest winds 10 to 15 mph. Chance of snow 20 percent.

Mostly cloudy in the morning then becoming partly sunny. Highs in the mid 30s. Northwest winds 10 to 15 mph.

Mostly cloudy. Lows in the mid 20s. Temperature rising to around 30 after midnight. South winds 5 to 10 mph becoming west 10 to 15 mph after midnight.

Mostly clear. Highs in the lower 50s. Lows in the upper 20s.

Mostly clear. Highs in the lower 50s. Lows in the upper 20s.

Partly cloudy. Highs in the upper 30s. Lows in the lower 20s.

Partly cloudy. Highs in the upper 30s. Lows in the lower 20s.

Partly cloudy. Highs in the mid 40s. Lows in the lower 20s.

Partly cloudy. Highs in the mid 40s. Lows in the lower 20s.

Partly cloudy. Highs in the mid 40s. Lows in the lower 20s.

Partly cloudy. Lows in the upper 20s. Highs in the lower 50s.

Partly cloudy. Lows in the upper 20s. Highs in the lower 50s.

Mostly clear. Low temperature around 32F. Dew point will be around 29F with an average humidity of 75%. Winds will be 5 mph from the SE.

Mostly sunny. High temperature around 45F. Dew point will be around 32F with an average humidity of 71%. Winds will be 7 mph from the S.

Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 33F. Dew point will be around 33F with an average humidity of 82%. Winds will be 5 mph from the SE.

Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 40F. Dew point will be around 33F with an average humidity of 82%. Winds will be 4 mph from the S.

Cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 33F. Dew point will be around 32F with an average humidity of 86%. Winds will be 4 mph from the E.