Gann Valley, South Dakota | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Mostly Clear
    57°
    Friday 5/17
    Forecast night icon
    57°
    Mostly Clear
    Hourly
    Night Details
    Mostly clear. Lows in the lower 50s. South winds 5 to 15 mph shifting to the west 15 to 20 mph with gusts to around 40 mph after midnight.
  • Forecast day icon
    Saturday
    Sunny
    70°
    Forecast night icon
    Night
    Partly Cloudy
    52°
    Saturday 5/18
    Day
    70°
    Sunny
    Forecast day icon
    Night
    52°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Breezy sunny. Highs around 70. Northwest winds 15 to 25 mph with gusts to around 40 mph.
    Night Details
    Clear in the evening then partly cloudy with a 20 percent chance of showers after midnight. Lows around 50. Southwest winds 5 to 10 mph shifting to the southeast after midnight.
  • Forecast day icon
    Sunday
    50% Chance of Storms
    74°
    Forecast night icon
    Night
    40% Chance of Storms
    57°
    Sunday 5/19
    Day
    74°
    50% Chance of Storms
    Forecast day icon
    Night
    57°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Breezy. Partly sunny with a 50 percent chance of showers and thunderstorms. Highs in the upper 70s. Southeast winds 15 to 25 mph.
    Night Details
    Partly cloudy with a 40 percent chance of showers and thunderstorms. Lows in the mid 50s. Southeast winds 10 to 15 mph shifting to the northeast 5 to 10 mph after midnight.
  • Forecast day icon
    Monday
    30% Chance Rain Showers
    71°
    Forecast night icon
    Night
    60% Chance of Storms
    52°
    Monday 5/20
    Day
    71°
    30% Chance Rain Showers
    Forecast day icon
    Night
    52°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a 30 percent chance of showers. Highs around 70.
    Night Details
    Showers likely and a slight chance of thunderstorms. Lows around 50. Chance of precipitation 60 percent.
  • Forecast day icon
    Tuesday
    50% Chance Rain Showers
    61°
    Forecast night icon
    Night
    40% Chance Rain Showers
    47°
    Tuesday 5/21
    Day
    61°
    50% Chance Rain Showers
    Forecast day icon
    Night
    47°
    40% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy with a 50 percent chance of showers. Highs in the lower 60s.
    Night Details
    Mostly cloudy in the evening then becoming partly cloudy. A 40 percent chance of showers. Lows in the mid 40s.
  • Forecast day icon
    Wednesday
    30% Chance Rain Showers
    61°
    Forecast night icon
    Night
    Partly Cloudy
    46°
    Wednesday 5/22
    Day
    61°
    30% Chance Rain Showers
    Forecast day icon
    Night
    46°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a 30 percent chance of showers. Highs in the mid 60s.
    Night Details
    Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the mid 40s.
  • Forecast day icon
    Thursday
    30% Chance of Storms
    68°
    Forecast night icon
    Night
    40% Chance of Storms
    50°
    Thursday 5/23
    Day
    68°
    30% Chance of Storms
    Forecast day icon
    Night
    50°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a 30 percent chance of showers and thunderstorms. Highs in the upper 60s.
    Night Details
    Partly cloudy with a 40 percent chance of showers and thunderstorms. Lows in the mid 40s.
  • Forecast day icon
    Friday
    40% Chance Rain Showers
    67°
    Forecast night icon
    Night
    50% Chance of Rain
    50°
    Friday 5/24
    Day
    67°
    40% Chance Rain Showers
    Forecast day icon
    Night
    50°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny with a 40 percent chance of showers. Highs in the mid 60s.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 50F. Dew point will be around 47F with an average humidity of 74%. Winds will be 1 mph from the S.
  • Forecast day icon
    Saturday
    40% Chance of Rain
    66°
    Forecast night icon
    Night
    40% Chance of Rain
    51°
    Saturday 5/25
    Day
    66°
    40% Chance of Rain
    Forecast day icon
    Night
    51°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a 35% chance for rain and thunderstorms. High temperature around 66F. Dew point will be around 47F with an average humidity of 66%. Winds will be 3 mph from the W.
    Night Details
    Mostly clear with a 35% chance for rain and thunderstorms. Low temperature around 51F. Dew point will be around 48F with an average humidity of 73%. Winds will be 2 mph from the E.
  • Forecast day icon
    Sunday
    40% Chance of Rain
    69°
    Forecast night icon
    Night
    30% Chance of Rain
    51°
    Sunday 5/26
    Day
    69°
    40% Chance of Rain
    Forecast day icon
    Night
    51°
    30% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of rain. Chance of precipitation 40%. High temperature around 69F. Dew point will be around 50F with an average humidity of 67%. Winds will be 2 mph from the W.
    Night Details
    Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 51F. Dew point will be around 49F with an average humidity of 74%. Winds will be 2 mph from the NE.