Costich Lake Weather Forecast

    • 29
    • 44

    Rain Likely

    • 30
    • 42

    Chance Rain/Snow

    • 28
    • 45

    Rain/Snow Likely

    • 22
    • 38

    Snow

    • 24
    • 37

    Chance Snow

    • 21
    • 37

    Chance Snow

Today 14 Feb Kootenai/Cabinet Region

Rain likely in the Morning, then a chance of rain and snow in the afternoon. Patchy fog in the morning. Chance of precipitation 90 percent. No snow accumulation. Highs in the upper 30s to mid 40s.

Tonight 14 Feb Kootenai/Cabinet Region

Mostly cloudy with a chance of rain. Slight chance of snow in the Evening, then a chance of snow and a chance of light freezing rain after midnight. Patchy fog after midnight. Chance of precipitation 40 percent. Lows in the mid 20s to lower 30s.

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  • Temperature Forecast NOAA

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Costich Lake Temperature Statistics

February Temperature

Kalispell, Glacier Park International Airport (52.8 miles)

  • Lowest 11 February, 2026

    17.1 °F

  • Average February

    36.2 °F

  • Highest 5 February, 2026

    54.6 °F

Climate (2021–Present)

Kalispell, Glacier Park International Airport (52.8 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    57.1 °F
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