Jewel Cave National Monument Weather Forecast

    • 35
    • 57

    Mostly Sunny

    • 37
    • 61

    Mostly Sunny

    • 41
    • 62

    Mostly Sunny

    • 45
    • 66

    Partly Sunny

    • 34
    • 61

    Chance Rain Showers

    • 29
    • 48

    Chance Snow Showers

Today 22 Oct Central Black Hills

Sunny. Highs in the mid 50s. West Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon.

Tonight 22 Oct Central Black Hills

Mostly clear. Lows in the lower 30s. Southwest Winds 5 to 10 Mph.

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  • Temperature Real-Time

Jewel Cave National Monument Temperature Statistics

October Temperature

Custer, Custer County Airport (9.9 miles)

  • Lowest 13 October, 2025

    26.1 °F

  • Average October

    49.4 °F

  • Highest 3 October, 2025

    81 °F

Climate (2020–Present)

Custer, Custer County Airport (9.9 miles)

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  • Average Low 2020–2025

    33.2 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    56.2 °F
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