Costich Lake Weather Forecast

    • 26
    • 43

    Snow Likely

    • 24
    • 41

    Snow

    • 14
    • 38

    Snow

    • 25
    • 39

    Chance Snow

    • 37
    • 47

    Chance Rain/Snow

    • 38
    • 58

    Slight Chance Rain

Today 12 Mar Kootenai/Cabinet Region

Areas of snow until late afternoon. Areas of rain early in the morning. Snow likely late in the afternoon. Chance of precipitation 70 percent. Little or no new snow accumulation. Highs in the upper 30s to mid 40s. West Winds 15 to 25 Mph. Gusts up to 55 Mph decreasing to 40 Mph in the afternoon.

Tonight 12 Mar Kootenai/Cabinet Region

Snow likely. Chance of snow 70 percent. Little or no new snow accumulation. Lows in the mid 20s to lower 30s. West Winds to 15 Mph.

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  • Temperature Forecast NOAA

  • 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

    39.3 °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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