Jewel Cave National Monument Weather Forecast

    • 61
    • 83

    Areas Smoke

    • 64
    • 93

    Smoke

    • 62
    • 90

    Mostly Sunny

    • 59
    • 87

    Chance Thunderstorms

    • 58
    • 84

    Chance Thunderstorms

    • 53
    • 80

    Rain Showers Likely

Today 7 Aug Central Black Hills

Mostly sunny. Areas of smoke. Highs in the lower 80s. North Winds around 5 Mph, becoming southeast with Gusts up to 25 Mph in the afternoon.

Tonight 7 Aug Central Black Hills

Clear. Areas of smoke. Lows in the lower 50s. North Winds 5 to 10 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Jewel Cave National Monument Temperature Statistics

August Temperature

Custer, Custer County Airport (9.9 miles)

  • Lowest 4 August, 2026

    42.1 °F

  • Average August

    67.2 °F

  • Highest 2 August, 2026

    93.7 °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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