Legion Lake Weather Forecast

    • 32
    • 53

    Mostly Sunny

    • 30
    • 54

    Mostly Sunny

    • 34
    • 52

    Partly Sunny

    • 30
    • 51

    Mostly Cloudy

    • 14
    • 39

    Chance Snow

    • 8
    • 23

    Slight Chance Snow

Today 29 Jan Central Black Hills

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

Tonight 29 Jan Central Black Hills

Clear. Lows in the upper 20s. West Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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Legion Lake Temperature Statistics

January Temperature

Custer, Custer County Airport (7.5 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 (7.5 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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