Costich Lake Weather Forecast

    • 18
    • 34

    Mostly Cloudy

    • 31
    • 42

    Rain/Snow Likely

    • 33
    • 45

    Rain

    • 26
    • 44

    Rain Likely

    • 27
    • 40

    Chance Snow

    • 27
    • 42

    Chance Snow

Today 21 Feb Kootenai/Cabinet Region

Mostly cloudy. Highs in the 30s to lower 40s.

Tonight 21 Feb Kootenai/Cabinet Region

Partly cloudy. Lows 16 to 23.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Costich Lake Temperature Statistics

February Temperature

Kalispell, Glacier Park International Airport (52.8 miles)

  • Lowest 18 February, 2026

    10 °F

  • Average February

    34.2 °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

    33.5 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    57.2 °F
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