Gann Valley, South Dakota | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    50°
    Thursday 5/9
    Forecast night icon
    50°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy. Lows in the upper 40s. Northwest winds 5 to 10 mph.
  • Forecast day icon
    Friday
    Partly Sunny
    70°
    Forecast night icon
    Night
    Clear
    46°
    Friday 5/10
    Day
    70°
    Partly Sunny
    Forecast day icon
    Night
    46°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Breezy. Partly sunny. Highs in the lower 70s. Northwest winds 10 to 15 mph increasing to 20 to 25 mph in the afternoon.
    Night Details
    Clear. Lows in the mid 40s. North winds 5 to 15 mph with gusts to around 30 mph shifting to the west up to 5 mph after midnight.
  • Forecast day icon
    Saturday
    Sunny
    74°
    Forecast night icon
    Night
    Mostly Clear
    51°
    Saturday 5/11
    Day
    74°
    Sunny
    Forecast day icon
    Night
    51°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 70s. West winds 5 to 15 mph.
    Night Details
    Mostly clear. Lows in the upper 40s. Southwest winds 5 to 10 mph.
  • Forecast day icon
    Sunday
    Mostly Sunny
    78°
    Forecast night icon
    Night
    Mostly Clear
    51°
    Sunday 5/12
    Day
    78°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs in the mid 70s. Lows in the upper 40s.
    Night Details
    Mostly clear. Highs in the mid 70s. Lows in the upper 40s.
  • Forecast day icon
    Monday
    Mostly Sunny
    72°
    Forecast night icon
    Night
    30% Chance of Storms
    53°
    Monday 5/13
    Day
    72°
    Mostly Sunny
    Forecast day icon
    Night
    53°
    30% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs in the mid 70s. Lows in the upper 40s.
    Night Details
    Mostly clear with a chance of showers and a slight chance of thunderstorms. Lows around 50. Chance of precipitation 30 percent.
  • Forecast day icon
    Tuesday
    40% Chance of Storms
    71°
    Forecast night icon
    Night
    40% Chance of Storms
    52°
    Tuesday 5/14
    Day
    71°
    40% Chance of Storms
    Forecast day icon
    Night
    52°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. A 40 percent chance of showers and thunderstorms. Highs in the lower 70s. Lows in the upper 40s.
    Night Details
    Partly cloudy. A 40 percent chance of showers and thunderstorms. Highs in the lower 70s. Lows in the upper 40s.
  • Forecast day icon
    Wednesday
    30% Chance Rain Showers
    65°
    Forecast night icon
    Night
    30% Chance Rain Showers
    48°
    Wednesday 5/15
    Day
    65°
    30% Chance Rain Showers
    Forecast day icon
    Night
    48°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Partly cloudy. A 30 percent chance of showers. Highs in the upper 60s. Lows in the mid 40s.
    Night Details
    Partly cloudy. A 30 percent chance of showers. Highs in the upper 60s. Lows in the mid 40s.
  • Forecast day icon
    Thursday
    Partly Sunny
    68°
    Forecast night icon
    Night
    Mostly Clear
    49°
    Thursday 5/16
    Day
    68°
    Partly Sunny
    Forecast day icon
    Night
    49°
    Mostly Clear
    Forecast night icon
    Day Details
    Partly sunny with a 20 percent chance of showers. Highs around 70.
    Night Details
    Mostly clear. Low temperature around 49F. Dew point will be around 45F with an average humidity of 66%. Winds will be 5 mph from the NW.
  • Forecast day icon
    Friday
    Mostly Sunny
    68°
    Forecast night icon
    Night
    Partly Cloudy
    47°
    Friday 5/17
    Day
    68°
    Mostly Sunny
    Forecast day icon
    Night
    47°
    Partly Cloudy
    Forecast night icon
    Day Details
    Mostly sunny. High temperature around 68F. Dew point will be around 44F with an average humidity of 56%. Winds will be 9 mph from the NW.
    Night Details
    Partly cloudy. Low temperature around 47F. Dew point will be around 43F with an average humidity of 62%. Winds will be 7 mph from the NW.
  • Forecast day icon
    Saturday
    Sunny
    70°
    Forecast night icon
    Night
    Clear
    48°
    Saturday 5/18
    Day
    70°
    Sunny
    Forecast day icon
    Night
    48°
    Clear
    Forecast night icon
    Day Details
    Sunny. High temperature around 70F. Dew point will be around 42F with an average humidity of 53%. Winds will be 9 mph from the NW.
    Night Details
    Clear. Low temperature around 48F. Dew point will be around 43F with an average humidity of 61%. Winds will be 5 mph from the NW.