Horse Thief Lake Weather Forecast

    • 65
    • 88

    Chance Thunderstorms

    • 64
    • 88

    Chance Thunderstorms

    • 60
    • 84

    Chance Thunderstorms

    • 62
    • 84

    Mostly Sunny

    • 69
    • 87

    Mostly Sunny

    • 67
    • 96

    Mostly Sunny

    • 57
    • 83

    Mostly Sunny

Today 28 Jul Central Black Hills

Partly cloudy with a chance of Showers and Thunderstorms. Highs in the 80s. East Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 28 Jul Central Black Hills

Mostly clear. A slight chance of Showers and Thunderstorms this evening. Lows in the lower 60s. East Winds around 5 Mph with Gusts up to 20 Mph, becoming southwest after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Horse Thief Lake Temperature Statistics

July Temperature

Custer, Custer County Airport (12.4 miles)

  • Lowest 3 July, 2026

    50.6 °F

  • Average July

    71.3 °F

  • Highest 25 July, 2026

    96.7 °F

Climate (2021–2026)

Custer, Custer County Airport (12.4 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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