Custer State Park Weather Forecast

    • 39
    • 61

    Mostly Cloudy

    • 47
    • 67

    Mostly Cloudy

    • 40
    • 80

    Partly Sunny

    • 27
    • 50

    Mostly Cloudy

    • 28
    • 48

    Partly Sunny

    • 39
    • 57

    Partly Sunny

Today 23 Mar Central Black Hills

Becoming partly cloudy. Highs around 60. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 23 Mar Central Black Hills

Partly cloudy. Lows in the upper 30s. North Winds around 5 Mph with Gusts up to 20 Mph, becoming west after midnight.

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Custer State Park Temperature Statistics

March Temperature

Custer, Custer County Airport (8.7 miles)

  • Lowest 15 March, 2026

    2.6 °F

  • Average March

    39.9 °F

  • Highest 21 March, 2026

    77 °F

Climate (2021–Present)

Custer, Custer County Airport (8.7 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    45.3 °F

  • Average High 2021–2026

    56.7 °F
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