Big Rock Park Weather Forecast

    • 41
    • 56

    Mostly Cloudy

    • 43
    • 58

    Partly Sunny

    • 37
    • 58

    Partly Sunny

    • 28
    • 52

    Partly Sunny

    • 17
    • 39

    Partly Sunny

    • 24
    • 38

    Partly Sunny

Today 23 Dec Central Black Hills

Partly cloudy. Highs in the mid 50s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 23 Dec Central Black Hills

Partly cloudy. Lows in the lower 40s. West Winds 5 to 10 Mph. Gusts up to 20 Mph, increasing to 30 Mph after midnight.

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Big Rock Park Temperature Statistics

December Temperature

Custer, Custer County Airport (1.9 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 (1.9 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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