Harney Peak Weather Forecast

    • 50
    • 61

    Mostly Cloudy

    • 47
    • 69

    Mostly Sunny

    • 53
    • 63

    Chance Rain Showers

    • 45
    • 64

    Rain Showers Likely

    • 45
    • 59

    Slight Chance Rain Showers

    • 44
    • 60

    Mostly Sunny

Today 25 Sep Central Black Hills

Partly cloudy. Highs in the mid 60s.

Tonight 25 Sep Central Black Hills

Partly cloudy. A slight chance of Showers and Thunderstorms in the evening. Lows in the lower 50s. Southwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • 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

    61 °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

    56.9 °F
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