Costich Lake Weather Forecast

    • 37
    • 51

    Rain

    • 36
    • 50

    Rain

    • 29
    • 48

    Rain

    • 26
    • 46

    Mostly Cloudy

    • 30
    • 50

    Mostly Cloudy

    • 32
    • 53

    Chance Rain

Today 5 Nov Kootenai/Cabinet Region

Rain and snow likely in the Morning, then rain likely in the afternoon. Patchy fog in the morning. Chance of precipitation 90 percent. No snow accumulation. Highs in the mid 40s to lower 50s.

Tonight 5 Nov Kootenai/Cabinet Region

Rain likely. Chance of rain near 100 percent. Lows in the mid 30s to lower 40s.

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Costich Lake Temperature Statistics

November Temperature

Kalispell, Glacier Park International Airport (52.8 miles)

  • Lowest 2 November, 2025

    24.1 °F

  • Average November

    42 °F

  • Highest 1 November, 2025

    52 °F

Climate (2020–Present)

Kalispell, Glacier Park International Airport (52.8 miles)

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  • Average Low 2020–2025

    33.2 °F

  • Average 2020–2025

    45.3 °F

  • Average High 2020–2025

    56.9 °F
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