Deerfield Lake Weather Forecast

    • 26
    • 44

    Partly Sunny

    • 28
    • 46

    Mostly Sunny

    • 32
    • 47

    Partly Sunny

    • 20
    • 42

    Rain/Snow Likely

    • 15
    • 35

    Snow Likely

    • 11
    • 26

    Snow Likely

Today 14 Feb Northern Black Hills

Sunny. Highs in the upper 40s. West Winds 5 to 10 Mph.

Tonight 14 Feb Northern Black Hills

Mostly clear. Lows in the mid 20s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph after midnight.

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  • Temperature Real-Time

Deerfield Lake Temperature Statistics

February Temperature

Custer, Custer County Airport (21.1 miles)

  • Lowest 10 February, 2026

    15.1 °F

  • Average February

    38.4 °F

  • Highest 5 February, 2026

    61.6 °F

Climate (2021–Present)

Custer, Custer County Airport (21.1 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    45.1 °F

  • Average High 2021–2026

    56.5 °F
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