Jewel Cave National Monument Weather Forecast

    • 52
    • 63

    Chance Rain Showers

    • 50
    • 72

    Mostly Cloudy

    • 51
    • 72

    Mostly Cloudy

    • 54
    • 70

    Mostly Sunny

    • 52
    • 76

    Mostly Sunny

    • 52
    • 70

    Partly Sunny

Today 22 Sep Central Black Hills

Areas of fog in the morning. Mostly cloudy. Highs in the lower 60s. South Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 22 Sep Central Black Hills

Mostly cloudy with a 50 percent chance of Showers. Lows in the lower 50s. South Winds 5 to 10 Mph with Gusts up to 25 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Jewel Cave National Monument Temperature Statistics

September Temperature

Custer, Custer County Airport (9.9 miles)

  • Lowest 15 September, 2026

    39.7 °F

  • Average September

    62.5 °F

  • Highest 4 September, 2026

    86.6 °F

Climate (2021–2026)

Custer, Custer County Airport (9.9 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    33.6 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    57 °F
Get WillyWeather+ to remove ads