Fennon Slough Weather Forecast

    • 34
    • 64

    Mostly Sunny

    • 37
    • 65

    Partly Sunny

    • 39
    • 65

    Rain

    • 28
    • 53

    Rain

    • 25
    • 50

    Mostly Cloudy

    • 24
    • 49

    Mostly Cloudy

    • 25
    • 51

    Partly Sunny

Today 20 Oct Flathead/Mission Valleys

Partly cloudy. A 20 percent chance of rain and snow in the morning. Highs in the upper 40s to mid 50s.

Tonight 20 Oct Flathead/Mission Valleys

Mostly clear. Patchy fog late in the night. Lows in the 30s.

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Fennon Slough Temperature Statistics

October Temperature

Kalispell, Glacier Park International Airport (14.9 miles)

  • Lowest 13 October, 2026

    21.7 °F

  • Average October

    46.7 °F

  • Highest 5 October, 2026

    74.6 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (14.9 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    57 °F
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