Harney Peak Weather Forecast

    • 53
    • 69

    Rain Showers Likely

    • 48
    • 57

    Rain Showers

    • 45
    • 49

    Rain Showers

    • 46
    • 52

    Chance Rain Showers

    • 50
    • 62

    Chance Rain Showers

    • 50
    • 68

    Chance Rain Showers

    • 51
    • 69

    Partly Sunny

Today 18 Sep Central Black Hills

Partly cloudy. Highs in the lower 70s.

Tonight 18 Sep Central Black Hills

Mostly cloudy with Showers likely with a chance of Thunderstorms. Lows in the mid 50s. Southeast Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Harney Peak Temperature Statistics

September Temperature

Custer, Custer County Airport (9.9 miles)

  • Lowest 15 September, 2026

    39.7 °F

  • Average September

    62.9 °F

  • Highest 4 September, 2026

    86.6 °F

Climate (2021–2026)

Custer, Custer County Airport (9.9 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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