10-Day Weather Forecast - Gann Valley, SD

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  • 81|58°F
    Partly Sunny

    Today

    81°F

    Partly sunny and breezy. Much warmer with highs in the mid 80s. Southeast winds 15 to 25 mph with gusts up to 35 mph.

    Tonight

    58°F

    Mostly cloudy. A slight chance of showers after midnight. Not as cool with lows in the mid 50s. South winds 10 to 15 mph becoming northwest 15 to 20 mph after midnight. Chance of rain 20 percent.

    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

    45°F

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

    Hourly details
  • Day

    77°F

    Sunny. Highs in the upper 70s. Southwest winds around 5 mph becoming southeast in the afternoon.

    Night

    57°F

    Partly cloudy. Patchy blowing dust through the day. Very windy. Lows in the lower 50s. Highs in the upper 80s.

    Hourly details
  • Day

    84°F

    Partly cloudy. Patchy blowing dust through the day. Very windy. Lows in the lower 50s. Highs in the upper 80s.

    Night

    58°F

    Mostly cloudy. A slight chance of thunderstorms in the evening. Breezy with lows in the mid 50s. Chance of rain 20 percent.

    Hourly details
  • Day

    82°F

    Partly cloudy. Highs in the mid 80s. Lows around 50.

    Night

    54°F

    Partly cloudy. Highs in the mid 80s. Lows around 50.

    Hourly details
  • Weekend Weather

  • Day

    82°F

    Partly sunny with a 20 percent chance of showers. Highs in the mid 80s.

    Night

    56°F

    Partly cloudy in the evening then becoming mostly cloudy. A 40 percent chance of showers. Lows in the lower 50s.

    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 upper 70s. Chance of rain 30 percent.

    Night

    51°F

    Mostly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 51F. Dew point will be around 41F with an average humidity of 50%. Winds will be 10 mph from the N.

  • Day

    69°F

    Partly cloudy. High temperature around 69F. Dew point will be around 40F with an average humidity of 48%. Winds will be 8 mph from the N.

    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.