Deerfield Lake Weather Forecast

    • 16
    • 35

    Snow

    • 24
    • 35

    Snow Showers

    • 24
    • 36

    Rain/Snow

    • 23
    • 35

    Chance Snow Showers

    • 25
    • 42

    Chance Rain/Snow

    • 25
    • 45

    Chance Snow Showers

Today 24 Apr Northern Black Hills

Snow Showers. Additional snow accumulation of 1 to 3 Inches. Highs in the mid 30s. West Winds 5 to 10 Mph. Chance of snow 90 percent.

Tonight 24 Apr Northern Black Hills

Partly cloudy with a 50 percent chance of snow Showers. Little or no additional snow accumulation. Lows 15 to 20. Northwest Winds 5 to 10 Mph.

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Deerfield Lake Temperature Statistics

April Temperature

Custer, Custer County Airport (21.1 miles)

  • Lowest 7 April, 2026

    20.6 °F

  • Average April

    40.2 °F

  • Highest 11 April, 2026

    72.6 °F

Climate (2021–Present)

Custer, Custer County Airport (21.1 miles)

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  • Average Low 2021–2026

    33.6 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    56.9 °F
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