Wind Cave National Park Weather Forecast

    • 46
    • 62

    Mostly Cloudy

    • 46
    • 65

    Partly Sunny

    • 42
    • 63

    Partly Sunny

    • 33
    • 57

    Partly Sunny

    • 21
    • 45

    Partly Sunny

    • 27
    • 41

    Partly Sunny

Today 23 Dec Southern Black Hills

Partly cloudy. Highs in the upper 50s. Northeast Winds 5 to 10 Mph, becoming southwest with Gusts up to 20 Mph in the afternoon.

Tonight 23 Dec Southern Black Hills

Becoming partly cloudy. Lows in the lower 40s. Northwest Winds 5 to 10 Mph. Gusts up to 30 Mph after midnight.

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Wind Cave National Park Temperature Statistics

December Temperature

Custer, Custer County Airport (12.4 miles)

  • Lowest 1 December, 2025

    7 °F

  • Average December

    31.1 °F

  • Highest 14 December, 2025

    57 °F

Climate (2020–Present)

Custer, Custer County Airport (12.4 miles)

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  • Average Low 2020–2025

    33.3 °F

  • Average 2020–2025

    44.9 °F

  • Average High 2020–2025

    56.2 °F
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