Jewel Cave National Monument Weather Forecast

    • 58
    • 79

    Chance Thunderstorms

    • 56
    • 81

    Rain Showers Likely

    • 56
    • 76

    Chance Thunderstorms

    • 57
    • 80

    Chance Thunderstorms

    • 59
    • 84

    Slight Chance Thunderstorms

    • 61
    • 88

    Slight Chance Thunderstorms

Today 4 Jul Central Black Hills

Mostly cloudy. A chance of Showers and Thunderstorms this Morning, then Showers and Thunderstorms likely this afternoon. Highs in the mid 70s. Northwest Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon. Chance of rain 70 percent.

Tonight 4 Jul Central Black Hills

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 50s. Northwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of rain 40 percent.

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  • Temperature Real-Time

Jewel Cave National Monument Temperature Statistics

July Temperature

Custer, Custer County Airport (9.9 miles)

  • Lowest 1 July, 2025

    48 °F

  • Average July

    70.5 °F

  • Highest 1 July, 2025

    82.9 °F

Climate (2020–Present)

Custer, Custer County Airport (9.9 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    56.2 °F
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