Deerfield Lake Weather Forecast

    • 23
    • 40

    Mostly Sunny

    • 25
    • 40

    Partly Sunny

    • 21
    • 39

    Slight Chance Snow

    • 11
    • 30

    Snow Likely

    • 6
    • 23

    Chance Snow

    • 3
    • 22

    Chance Snow

Today 30 Jan Northern Black Hills

Sunny. Highs in the mid 40s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 30 Jan Northern Black Hills

Clear. Lows in the mid 20s. West Winds 5 to 10 Mph.

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Deerfield Lake Temperature Statistics

January Temperature

Custer, Custer County Airport (21.1 miles)

  • Lowest 20 January, 2025

    -15.3 °F

  • Average January

    18.3 °F

  • Highest 16 January, 2025

    44.7 °F

Climate (2020–Present)

Custer, Custer County Airport (21.1 miles)

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  • Average Low 2020–2025

    33.1 °F

  • Average 2020–2025

    44.7 °F

  • Average High 2020–2025

    55.9 °F
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