Costich Lake Weather Forecast

    • 32
    • 42

    Rain/Snow

    • 27
    • 44

    Snow

    • 24
    • 42

    Snow

    • 16
    • 39

    Snow

    • 26
    • 39

    Snow Likely

    • 36
    • 49

    Chance Rain

Today 11 Mar Kootenai/Cabinet Region

Snow likely in the Morning, then Areas of rain and snow early in the afternoon. Snow and rain likely late in the afternoon. Chance of precipitation near 100 percent. Little or no new snow accumulation. Highs in the upper 30s to mid 40s.

Tonight 11 Mar Kootenai/Cabinet Region

Rain likely. Snow likely in the evening. Chance of precipitation near 100 percent. Little or no new snow accumulation. Lows in the upper 20s to mid 30s. South Winds 15 to 25 Mph with Gusts to around 45 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

    39.9 °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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