Harney Peak Weather Forecast

    • 55
    • 74

    Thunderstorms Likely

    • 58
    • 78

    Mostly Sunny

    • 63
    • 85

    Mostly Sunny

    • 65
    • 90

    Mostly Sunny

    • 64
    • 89

    Mostly Sunny

    • 64
    • 85

    Mostly Sunny

    • 63
    • 83

    Slight Chance Thunderstorms

Today 9 Jul Central Black Hills

Showers and Thunderstorms likely. Highs in the mid 70s to lower 80s. East Winds around 5 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

Tonight 9 Jul Central Black Hills

Partly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the upper 50s. West Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening. Chance of rain 40 percent.

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Harney Peak Temperature Statistics

July Temperature

Custer, Custer County Airport (9.9 miles)

  • Lowest 3 July, 2026

    50.6 °F

  • Average July

    67.8 °F

  • Highest 5 July, 2026

    87.7 °F

Climate (2021–2026)

Custer, Custer County Airport (9.9 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    45.3 °F

  • Average High 2021–2026

    56.9 °F
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