10-Day Weather Forecast - Gann Valley, SD
- |42°FPartly CloudyHourly details
Tonight
42°FPartly cloudy this evening then becoming mostly clear. Lows in the upper 30s. Northeast winds 5 to 10 mph.
- 74|41°FPartly SunnyHourly details
Day
74°FPartly sunny. Highs in the mid 70s. East winds 5 to 10 mph becoming northwest in the afternoon.
Night
41°FPartly cloudy in the evening then becoming mostly cloudy. Windy with lows in the mid 30s. East winds 10 to 15 mph with gusts up to 25 mph increasing to north 20 to 30 mph with gusts up to 45 mph after midnight.
- 46|29°FWindyHourly details
Day
46°FMostly cloudy in the morning then becoming partly sunny. Windy and much colder with highs in the upper 40s. North winds 20 to 30 mph with gusts up to 40 mph.
Night
29°FMostly cloudy. A slight chance of snow after midnight. Colder with lows in the mid 20s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of snow 20 percent.
- 37|29°F60% Chance of SnowHourly details
Day
37°FCloudy. A chance of snow in the morning then snow likely in the afternoon. Little or no snow accumulation. Highs in the lower 40s. Chance of snow 60 percent.
Night
29°FMostly cloudy with a 50 percent chance of snow. Lows in the upper 20s.
- 38|31°F40% Chance of SnowHourly details
Day
38°FMostly cloudy with a chance of snow. A slight chance of rain in the afternoon. Breezy with highs in the upper 40s. Chance of precipitation 40 percent.
Night
31°FMostly cloudy. A slight chance of rain and snow in the evening then a chance of rain and snow after midnight. Breezy with lows in the lower 30s. Chance of precipitation 40 percent.
- 41|30°F60% Chance of SnowHourly details
Day
41°FSnow likely in the morning. Rain likely. Little or no snow accumulation. Highs in the lower 50s. Chance of precipitation 60 percent.
Night
30°FMostly cloudy with a chance of rain and snow. Windy. Lows in the upper 20s. Highs in the mid 40s. Chance of precipitation 50 percent.
Weekend Weather
- 42|27°F50% Chance Frozen MixHourly details
Day
42°FMostly cloudy with a chance of rain and snow. Windy. Lows in the upper 20s. Highs in the mid 40s. Chance of precipitation 50 percent.
Night
27°FMostly cloudy with a slight chance of rain and snow in the evening then partly cloudy after midnight. Breezy with lows in the lower 20s. Chance of precipitation 20 percent.
- 53|37°FPartly Sunny
Day
53°FPartly sunny. Highs in the upper 40s.
Night
37°FClear. Low temperature around 37F. Dew point will be around 32F with an average humidity of 65%. Winds will be 4 mph from the SE.
- 58|38°FSunny
Day
58°FSunny. High temperature around 58F. Dew point will be around 35F with an average humidity of 62%. Winds will be 5 mph from the SE.
Night
38°FPartly cloudy. Low temperature around 38F. Dew point will be around 35F with an average humidity of 65%. Winds will be 7 mph from the E.
- 56|38°FPartly Cloudy
Day
56°FPartly cloudy. High temperature around 56F. Dew point will be around 36F with an average humidity of 65%. Winds will be 6 mph from the E.
Night
38°FPartly cloudy. Low temperature around 38F. Dew point will be around 35F with an average humidity of 66%. Winds will be 6 mph from the NE.













