Costich Lake Weather Forecast

    • 25
    • 41

    Snow

    • 13
    • 37

    Snow

    • 26
    • 38

    Snow Likely

    • 38
    • 46

    Rain/Snow Likely

    • 39
    • 56

    Chance Rain

    • 41
    • 58

    Rain Likely

Today 13 Mar Kootenai/Cabinet Region

Snow likely through the day. Areas of rain in the afternoon. Patchy fog in the morning. Chance of precipitation 90 percent. Snow Accumulations of 1 to 2 Inches. Highs in the upper 30s to mid 40s.

Tonight 13 Mar Kootenai/Cabinet Region

Mostly cloudy with a chance of snow. A chance of rain in the evening. Chance of precipitation 50 percent. Lows in the mid 20s to lower 30s.

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  • Temperature Real-Time

Costich Lake Temperature Statistics

March Temperature

Kalispell, Glacier Park International Airport (52.8 miles)

  • Lowest 1 March, 2026

    18.6 °F

  • Average March

    38.2 °F

  • Highest 3 March, 2026

    56.6 °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

    57.2 °F
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