Mystic Lake Weather Forecast

    • 21
    • 23

    Snow

    • 23
    • 27

    Blizzard

    • 19
    • 24

    Snow

    • 22
    • 27

    Snow Likely

    • 26
    • 27

    Snow

    • 27
    • 31

    Snow

Today 4 Dec Northwest Beaverhead County

Mostly cloudy. Slight chance of snow late in the Morning, then chance of snow in the afternoon. Highs 23 to 31. West Winds 5 to 15 Mph with Gusts to around 35 Mph. Chance of snow 50 percent.

Tonight 4 Dec Northwest Beaverhead County

Snow in the Evening, then snow likely after midnight. Snow accumulation up to 8 Inches. Near steady temperature in the lower 20s. West Winds 5 to 15 Mph with Gusts to around 35 Mph. Chance of snow near 100 percent.

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Mystic Lake Temperature Statistics

December Temperature

Butte, Bert Mooney Airport (51 miles)

  • Lowest 1 December, 2025

    3 °F

  • Average December

    25.2 °F

  • Highest 2 December, 2025

    33.1 °F

Climate (2020–Present)

Butte, Bert Mooney Airport (51 miles)

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  • Average Low 2020–2025

    27.9 °F

  • Average 2020–2025

    41.8 °F

  • Average High 2020–2025

    55.1 °F
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