Mystic Lake Weather Forecast

    • 17
    • 26

    Mostly Sunny

    • 11
    • 27

    Partly Sunny

    • 13
    • 26

    Partly Sunny

    • 15
    • 27

    Mostly Cloudy

    • 11
    • 23

    Chance Snow

    • 12
    • 21

    Chance Snow

Today 19 Jan Northwest Beaverhead County

Sunny. Highs 27 to 33. West Winds up to 10 Mph. Gusts up to 30 Mph in the afternoon.

Tonight 19 Jan Northwest Beaverhead County

Mostly clear. Lows 13 to 19. West Winds 5 to 10 Mph with Gusts to around 35 Mph.

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Mystic Lake Temperature Statistics

January Temperature

Butte, Bert Mooney Airport (51 miles)

  • Lowest 8 January, 2026

    12 °F

  • Average January

    32.5 °F

  • Highest 14 January, 2026

    51.1 °F

Climate (2021–Present)

Butte, Bert Mooney Airport (51 miles)

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  • Average Low 2021–2026

    28.2 °F

  • Average 2021–2026

    42 °F

  • Average High 2021–2026

    55.3 °F
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