Beaver Lake Weather Forecast

    • 61
    • 71

    Thunderstorms Likely

    • 56
    • 73

    Chance Rain Showers

    • 56
    • 71

    Chance Rain Showers

    • 58
    • 75

    Partly Sunny

    • 58
    • 78

    Partly Sunny

    • 54
    • 76

    Mostly Sunny

    • 53
    • 73

    Mostly Sunny

Today 17 Sep Minnehaha

Mostly cloudy. A chance of Showers and Thunderstorms Early, then Showers and Thunderstorms likely. Not as warm with Highs in the lower 70s. East Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 17 Sep Minnehaha

Mostly cloudy. Showers likely with a chance of Thunderstorms this Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Lows in the lower 60s. Southeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Beaver Lake Temperature Statistics

September Temperature

Sioux Falls, Foss Field (14.9 miles)

  • Lowest 7 September, 2025

    36 °F

  • Average September

    65.6 °F

  • Highest 13 September, 2025

    90 °F

Climate (2020–Present)

Sioux Falls, Foss Field (14.9 miles)

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  • Average Low 2020–2025

    38.8 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    60.6 °F
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