10-Day Weather Forecast - Gann Valley, SD

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  • 81|59°F
    Partly Cloudy

    Today

    81°F

    Partly cloudy. High temperature around 81F. Dew point will be around 37F with an average humidity of 33%. Winds will be 19 mph from the SE.

    Tonight

    59°F

    Mostly cloudy with a 20 percent chance of thunderstorms. Not as cool with lows in the mid 50s. South winds 10 to 15 mph becoming northwest 15 to 20 mph after midnight.

    Hourly details
  • Day

    73°F

    Mostly sunny and breezy. Not as warm with highs in the mid 70s. Northwest winds 15 to 25 mph with gusts up to 35 mph.

    Night

    46°F

    Mostly clear. Cooler with lows in the lower 40s. Northwest winds 15 to 20 mph with gusts up to 30 mph diminishing to around 5 mph after midnight.

    Hourly details
  • Day

    77°F

    Mostly sunny. Highs in the upper 70s. South winds around 5 mph increasing to southeast 10 to 15 mph in the afternoon.

    Night

    57°F

    Partly cloudy in the evening then becoming mostly cloudy. Breezy and not as cool with lows in the lower 50s. Southeast winds 15 to 25 mph with gusts up to 40 mph.

    Hourly details
  • Day

    84°F

    Partly sunny and very windy. Highs in the mid 80s.

    Night

    58°F

    Partly cloudy with a slight chance of showers in the evening then mostly clear after midnight. Lows around 50. Chance of rain 20 percent.

    Hourly details
  • Day

    82°F

    Mostly clear and breezy. Highs in the lower 80s. Lows in the upper 40s.

    Night

    54°F

    Mostly clear and breezy. Highs in the lower 80s. Lows in the upper 40s.

    Hourly details
  • Weekend Weather

  • Day

    82°F

    Partly sunny. A slight chance of showers in the morning then a slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent.

    Night

    56°F

    Partly cloudy with a slight chance of thunderstorms in the evening then mostly cloudy with a chance of showers after midnight. Lows in the lower 50s. Chance of rain 30 percent.

    Hourly details
  • Day

    76°F

    Partly sunny with a chance of showers. A slight chance of thunderstorms in the afternoon. Breezy with highs in the mid 70s. Chance of rain 30 percent.

    Night

    51°F

    Partly cloudy with a 20 percent chance of showers. Breezy with lows in the mid 40s.

  • Day

    69°F

    Partly sunny. Highs in the upper 60s.

    Night

    47°F

    Partly cloudy. Low temperature around 47F. Dew point will be around 40F with an average humidity of 55%. Winds will be 6 mph from the N.

  • Day

    74°F

    Sunny. High temperature around 74F. Dew point will be around 41F with an average humidity of 48%. Winds will be 4 mph from the SE.

    Night

    53°F

    Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 53F. Dew point will be around 45F with an average humidity of 55%. Winds will be 6 mph from the SE.

  • Day

    75°F

    Mostly sunny with a slight chance of rain. Chance of precipitation 30%. High temperature around 75F. Dew point will be around 49F with an average humidity of 56%. Winds will be 4 mph from the SE.

    Night

    53°F

    Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 53F. Dew point will be around 48F with an average humidity of 61%. Winds will be 5 mph from the E.