Jewel Cave National Monument Weather Forecast

    • 53
    • 69

    Severe Tstms

    • 49
    • 68

    Chance Thunderstorms

    • 49
    • 65

    Rain Showers Likely

    • 52
    • 63

    Rain Showers

    • 57
    • 75

    Chance Thunderstorms

    • 55
    • 80

    Chance Thunderstorms

    • 50
    • 72

    Chance Thunderstorms

Today 22 Jun Central Black Hills

Showers and Thunderstorms likely. Some Thunderstorms may be severe. Near steady temperature in the mid 60s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 60 percent.

Tonight 22 Jun Central Black Hills

Partly cloudy with Showers and Thunderstorms likely this Evening, then mostly cloudy with a chance of Showers with a slight chance of Thunderstorms after midnight. Some Thunderstorms may produce damaging Winds and large hail this evening. Lows in the lower 50s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming northwest after midnight. Chance of rain 60 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jewel Cave National Monument Temperature Statistics

June Temperature

Custer, Custer County Airport (9.9 miles)

  • Lowest 14 June, 2026

    33.7 °F

  • Average June

    58.2 °F

  • Highest 7 June, 2026

    86.6 °F

Climate (2021–2026)

Custer, Custer County Airport (9.9 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    45.3 °F

  • Average High 2021–2026

    56.9 °F
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