Custer County Airport Weather Forecast

    • 43
    • 57

    Rain Showers

    • 41
    • 61

    Chance Rain Showers

    • 44
    • 67

    Partly Sunny

    • 48
    • 73

    Mostly Sunny

    • 47
    • 75

    Mostly Sunny

    • 43
    • 68

    Mostly Sunny

    • 44
    • 71

    Mostly Sunny

Today 17 Sep Central Black Hills

Showers and a slight chance of Thunderstorms. Near steady temperature in the mid 50s. North Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 17 Sep Central Black Hills

Mostly cloudy with a 50 percent chance of Showers. Lows in the mid 40s. North Winds 5 to 10 Mph. Gusts up to 20 Mph.

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Custer County Airport Temperature Statistics

September Temperature

Custer, Custer County Airport (0 miles)

  • Lowest 6 September, 2025

    32 °F

  • Average September

    60.6 °F

  • Highest 11 September, 2025

    82.9 °F

Climate (2020–Present)

Custer, Custer County Airport (0 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    44.8 °F

  • Average High 2020–2025

    56.2 °F
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