Heart Lake Weather Forecast

    • 33
    • 41

    Becoming Sunny

    • 32
    • 50

    Increasing Clouds

    • 34
    • 42

    Partly Sunny

    • 33
    • 48

    Snow

    • 26
    • 34

    Snow

    • 24
    • 27

    Snow

    • 23
    • 26

    Snow

Today 21 Oct Lower Clark Fork Region

Partly cloudy. Patchy fog early in the morning. Highs in the 50s. Southwest Winds 15 to 25 Mph.

Tonight 21 Oct Lower Clark Fork Region

Partly cloudy. Lows in the 30s.

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Heart Lake Temperature Statistics

October Temperature

Missoula, Missoula International Airport (41 miles)

  • Lowest 6 October, 2025

    27 °F

  • Average October

    46.5 °F

  • Highest 10 October, 2025

    81 °F

Climate (2020–Present)

Missoula, Missoula International Airport (41 miles)

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  • Average Low 2020–2025

    35.6 °F

  • Average 2020–2025

    47.1 °F

  • Average High 2020–2025

    59.3 °F
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