Gann Valley, South Dakota | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast day icon
    Friday
    Mostly Sunny
    70°
    Forecast night icon
    Night
    Clear
    46°
    Friday 5/10
    Day
    70°
    Mostly Sunny
    Forecast day icon
    Night
    46°
    Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. North winds 15 to 20 mph.
    Night Details
    Clear. Lows in the mid 40s. Northwest winds 5 to 10 mph. Gusts up to 25 mph in the evening.
  • Forecast day icon
    Saturday
    Sunny
    76°
    Forecast night icon
    Night
    Mostly Clear
    52°
    Saturday 5/11
    Day
    76°
    Sunny
    Forecast day icon
    Night
    52°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs around 80. West winds 5 to 15 mph.
    Night Details
    Mostly clear. Lows in the lower 50s. Southwest winds 5 to 10 mph.
  • Forecast day icon
    Sunday
    Mostly Sunny
    79°
    Forecast night icon
    Night
    Mostly Clear
    51°
    Sunday 5/12
    Day
    79°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the upper 70s. West winds 5 to 10 mph shifting to the north 5 to 15 mph in the afternoon.
    Night Details
    Mostly clear. A 20 percent chance of showers and thunderstorms in the evening. Lows in the upper 40s. Northeast winds 5 to 15 mph.
  • Forecast day icon
    Monday
    Mostly Sunny
    71°
    Forecast night icon
    Night
    Mostly Clear
    51°
    Monday 5/13
    Day
    71°
    Mostly Sunny
    Forecast day icon
    Night
    51°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Highs in the lower 70s. Lows in the upper 40s.
    Night Details
    Mostly clear. Highs in the lower 70s. Lows in the upper 40s.
  • Forecast day icon
    Tuesday
    40% Chance Rain Showers
    72°
    Forecast night icon
    Night
    60% Chance of Storms
    53°
    Tuesday 5/14
    Day
    72°
    40% Chance Rain Showers
    Forecast day icon
    Night
    53°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a 40 percent chance of showers. Highs in the lower 70s.
    Night Details
    Showers likely and a slight chance of thunderstorms. Lows in the lower 50s. Chance of precipitation 60 percent.
  • Forecast day icon
    Wednesday
    50% Chance of Storms
    66°
    Forecast night icon
    Night
    Partly Cloudy
    48°
    Wednesday 5/15
    Day
    66°
    50% Chance of Storms
    Forecast day icon
    Night
    48°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of showers and a slight chance of thunderstorms. Highs in the upper 60s. Chance of precipitation 50 percent.
    Night Details
    Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid 40s.
  • Forecast day icon
    Thursday
    Partly Sunny
    66°
    Forecast night icon
    Night
    Mostly Clear
    46°
    Thursday 5/16
    Day
    66°
    Partly Sunny
    Forecast day icon
    Night
    46°
    Mostly Clear
    Forecast night icon
    Day Details
    Partly sunny with a 20 percent chance of showers. Highs in the upper 60s.
    Night Details
    Mostly clear. Lows in the mid 40s. Highs in the lower 70s.
  • Forecast day icon
    Friday
    Mostly Sunny
    69°
    Forecast night icon
    Night
    Clear
    47°
    Friday 5/17
    Day
    69°
    Mostly Sunny
    Forecast day icon
    Night
    47°
    Clear
    Forecast night icon
    Day Details
    Mostly clear. Lows in the mid 40s. Highs in the lower 70s.
    Night Details
    Clear. Low temperature around 47F. Dew point will be around 42F with an average humidity of 61%. Winds will be 5 mph from the NW.
  • Forecast day icon
    Saturday
    30% Chance of Rain
    69°
    Forecast night icon
    Night
    30% Chance of Rain
    48°
    Saturday 5/18
    Day
    69°
    30% Chance of Rain
    Forecast day icon
    Night
    48°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 69F. Dew point will be around 42F with an average humidity of 55%. Winds will be 10 mph from the NW.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 48F. Dew point will be around 42F with an average humidity of 59%. Winds will be 3 mph from the N.
  • Forecast day icon
    Sunday
    30% Chance of Rain
    67°
    Forecast night icon
    Night
    30% Chance of Rain
    47°
    Sunday 5/19
    Day
    67°
    30% Chance of Rain
    Forecast day icon
    Night
    47°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 67F. Dew point will be around 43F with an average humidity of 57%. Winds will be 5 mph from the NW.
    Night Details
    Partly cloudy with a slight chance of rain. Chance of precipitation 25%. Low temperature around 47F. Dew point will be around 44F with an average humidity of 64%. Winds will be 3 mph from the N.