James Lake Weather Forecast

    • 10
    • 35

    Partly Sunny

    • 13
    • 33

    Partly Sunny

    • 10
    • 35

    Slight Chance Snow

    • 9
    • 31

    Mostly Cloudy

    • 10
    • 34

    Snow Likely

    • 5
    • 27

    Snow Likely

    • 5
    • 24

    Snow Likely

Today 18 Jan Butte/Blackfoot Region

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

Tonight 18 Jan Butte/Blackfoot Region

Mostly clear. Lows 11 to 18.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

James Lake Temperature Statistics

January Temperature

Missoula, Missoula International Airport (42.9 miles)

  • Lowest 1 January, 2026

    16 °F

  • Average January

    31.4 °F

  • Highest 13 January, 2026

    55 °F

Climate (2021–Present)

Missoula, Missoula International Airport (42.9 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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