Major Lake Weather Forecast

    • 42
    • 61

    Slight Chance Thunderstorms

    • 46
    • 65

    Partly Sunny

    • 50
    • 72

    Mostly Sunny

    • 51
    • 76

    Partly Sunny

    • 44
    • 61

    Chance Rain Showers

    • 45
    • 66

    Mostly Sunny

    • 49
    • 70

    Mostly Sunny

Today 18 Sep Central Black Hills

Partly cloudy with a 20 percent chance of Showers. Near steady temperature in the upper 50s. Northeast Winds around 5 Mph with Gusts up to 20 Mph.

Tonight 18 Sep Central Black Hills

Partly cloudy. A chance of Showers with a slight chance of Thunderstorms after midnight. Areas of fog after midnight. Lows in the lower 40s. Northeast Winds around 5 Mph, becoming northwest after midnight. Chance of rain 30 percent.

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Major Lake Temperature Statistics

September Temperature

Custer, Custer County Airport (13.7 miles)

  • Lowest 6 September, 2025

    32 °F

  • Average September

    60.1 °F

  • Highest 11 September, 2025

    82.9 °F

Climate (2020–Present)

Custer, Custer County Airport (13.7 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    44.7 °F

  • Average High 2020–2025

    56.2 °F
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