Costich Lake Weather Forecast

    • 29
    • 39

    Chance Snow

    • 30
    • 41

    Rain/Snow Likely

    • 24
    • 42

    Rain/Snow Likely

    • 22
    • 42

    Partly Sunny

    • 25
    • 44

    Partly Sunny

    • 27
    • 47

    Partly Sunny

Today 25 Feb Kootenai/Cabinet Region

Partly cloudy. A 40 percent chance of rain and snow in the afternoon. Highs in the mid 30s to lower 40s.

Tonight 25 Feb Kootenai/Cabinet Region

Mostly cloudy with a chance of snow. A chance of rain in the evening. Chance of precipitation 40 percent. Lows in the mid 20s to lower 30s.

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  • Temperature Real-Time

Costich Lake Temperature Statistics

February Temperature

Kalispell, Glacier Park International Airport (52.8 miles)

  • Lowest 21 February, 2026

    3.7 °F

  • Average February

    31.7 °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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