Wind Cave National Park Weather Forecast

    • 57
    • 71

    Rain Showers

    • 55
    • 75

    Rain Showers Likely

    • 53
    • 68

    Rain Showers

    • 50
    • 62

    Rain Showers

    • 50
    • 67

    Chance Rain Showers

    • 54
    • 73

    Chance Rain Showers

Today 17 Sep Southern Black Hills

Cloudy. A slight chance of Showers this Morning, then Showers with a chance of Thunderstorms this afternoon. Highs in the lower 70s. East Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 90 percent.

Tonight 17 Sep Southern Black Hills

Cloudy. Showers likely with a slight chance of Thunderstorms in the Evening, then a chance of Showers after midnight. Lows in the mid 50s. Northeast Winds 10 to 20 Mph with Gusts up to 30 Mph, Diminishing to 5 to 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Wind Cave National Park Temperature Statistics

September Temperature

Custer, Custer County Airport (12.4 miles)

  • Lowest 15 September, 2026

    41 °F

  • Average September

    63.4 °F

  • Highest 4 September, 2026

    86.6 °F

Climate (2021–2026)

Custer, Custer County Airport (12.4 miles)

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  • Average Low 2021–2026

    33.6 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    57 °F
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