Deerfield Lake Weather Forecast

    • 33
    • 48

    Chance Rain Showers

    • 35
    • 54

    Increasing Clouds

    • 42
    • 61

    Partly Sunny

    • 51
    • 69

    Partly Sunny

    • 40
    • 60

    Slight Chance Thunderstorms

    • 42
    • 63

    Mostly Sunny

    • 47
    • 71

    Slight Chance Thunderstorms

Today 13 Jun Northern Black Hills

Partly cloudy with a 20 percent chance of Showers. Highs in the 40s to mid 50s. Northwest Winds 5 to 10 Mph with Gusts up to 35 Mph.

Tonight 13 Jun Northern Black Hills

Mostly clear. Lows in the mid 30s. Northwest Winds 5 to 10 Mph. Gusts up to 30 Mph in the evening.

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Deerfield Lake Temperature Statistics

June Temperature

Custer, Custer County Airport (21.1 miles)

  • Lowest 11 June, 2026

    41 °F

  • Average June

    61 °F

  • Highest 7 June, 2026

    86.6 °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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