Bismark Lake Weather Forecast

    • 33
    • 54

    Becoming Sunny

    • 39
    • 60

    Mostly Sunny

    • 29
    • 61

    Snow Likely

    • 21
    • 37

    Snow Likely

    • 32
    • 46

    Mostly Sunny

    • 32
    • 55

    Partly Sunny

Today 3 Mar Central Black Hills

Partly cloudy this Morning, then clearing. Highs in the lower 50s. North Winds 5 to 10 Mph. Gusts up to 20 Mph this afternoon.

Tonight 3 Mar Central Black Hills

Clear. Lows in the lower 30s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bismark Lake Temperature Statistics

March Temperature

Custer, Custer County Airport (5.6 miles)

  • Lowest 1 March, 2026

    24.1 °F

  • Average March

    35.9 °F

  • Highest 1 March, 2026

    53.1 °F

Climate (2021–Present)

Custer, Custer County Airport (5.6 miles)

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  • Average Low 2021–2026

    33.5 °F

  • Average 2021–2026

    45.2 °F

  • Average High 2021–2026

    56.7 °F
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