Bismark Lake Weather Forecast

    • 32
    • 54

    Chance Rain Showers

    • 30
    • 52

    Chance Rain/Snow

    • 29
    • 48

    Rain/Snow Likely

    • 41
    • 60

    Mostly Sunny

    • 47
    • 72

    Chance Thunderstorms

    • 39
    • 65

    Chance Rain Showers

Today 1 May Central Black Hills

Cloudy with a chance of rain Showers. A slight chance of snow Showers this Morning, then a slight chance of Thunderstorms this afternoon. Highs in the lower 50s. South Winds 10 to 20 Mph with Gusts up to 30 Mph. Chance of precipitation 50 percent.

Tonight 1 May Central Black Hills

Partly cloudy. A chance of rain Showers in the Evening, then a slight chance of rain Showers after midnight. Lows in the lower 30s. Northwest Winds 10 to 15 Mph. Chance of rain 50 percent.

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Bismark Lake Temperature Statistics

May Temperature

Custer, Custer County Airport (5.6 miles)

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  • Average May

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Climate (2019–Present)

Custer, Custer County Airport (5.6 miles)

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  • Average Low 2019–2024

    32.8 °F

  • Average 2019–2024

    44 °F

  • Average High 2019–2024

    54.8 °F
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