Lake Otatsy Weather Forecast

    • 8
    • 23

    Partly Sunny

    • -1
    • 15

    Partly Sunny

    • 1
    • 10

    Mostly Sunny

    • 6
    • 16

    Mostly Sunny

    • 13
    • 22

    Partly Sunny

    • 20
    • 27

    Chance Snow

Today 21 Jan Butte/Blackfoot Region

Partly cloudy. Highs in the upper 20s to mid 30s.

Tonight 21 Jan Butte/Blackfoot Region

Mostly cloudy in the evening then becoming partly cloudy. Lows 9 to 16.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Otatsy Temperature Statistics

January Temperature

Missoula, Missoula International Airport (52.8 miles)

  • Lowest 1 January, 2026

    16 °F

  • Average January

    30.7 °F

  • Highest 13 January, 2026

    55 °F

Climate (2021–Present)

Missoula, Missoula International Airport (52.8 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    47.4 °F

  • Average High 2021–2026

    59.5 °F
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