Wind Cave National Park Weather Forecast

    • 57
    • 69

    Rain Showers

    • 57
    • 76

    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

Showers with a chance of Thunderstorms. Highs in the upper 60s. East Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Tonight 17 Sep Southern Black Hills

Showers with a chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Patchy fog. Lows in the mid 50s. Northeast Winds 5 to 10 Mph with Gusts up to 25 Mph, becoming northwest after midnight.

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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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