Mackinaw Bay Weather Forecast

    • 39
    • 68

    Becoming Sunny

    • 43
    • 76

    Mostly Sunny

    • 45
    • 81

    Rain Likely

    • 38
    • 60

    Rain Likely

    • 35
    • 65

    Mostly Sunny

    • 41
    • 71

    Mostly Sunny

    • 46
    • 77

    Mostly Sunny

Today 1 May Flathead/Mission Valleys

Mostly sunny. Highs in the mid 60s to lower 70s.

Tonight 1 May Flathead/Mission Valleys

Mostly clear. Lows in the mid 30s to lower 40s.

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Mackinaw Bay Temperature Statistics

May Temperature

Kalispell, Glacier Park International Airport (11.2 miles)

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Climate (2020–Present)

Kalispell, Glacier Park International Airport (11.2 miles)

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  • Average Low 2020–2025

    33 °F

  • Average 2020–2025

    44.9 °F

  • Average High 2020–2025

    56.5 °F
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