Horse Thief Lake Weather Forecast

    • 19
    • 33

    Mostly Cloudy

    • 16
    • 36

    Chance Snow

    • 25
    • 37

    Slight Chance Snow

    • 28
    • 41

    Partly Sunny

    • 27
    • 46

    Chance Snow

    • 26
    • 36

    Chance Snow

Today 5 Dec Central Black Hills

Partly cloudy. A chance of snow in the morning. Little or no snow accumulation. Highs in the lower 30s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of snow 50 percent.

Tonight 5 Dec Central Black Hills

Partly cloudy with a chance of snow and freezing rain. Snow accumulation up to 1 inch possible. Near steady temperature in the upper 20s. Northwest Winds 10 to 15 Mph with Gusts up to 35 Mph. Chance of precipitation 50 percent.

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Horse Thief Lake Temperature Statistics

December Temperature

Custer, Custer County Airport (12.4 miles)

  • Lowest 1 December, 2025

    7 °F

  • Average December

    25.1 °F

  • Highest 2 December, 2025

    34 °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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