Costich Lake Weather Forecast

    • 36
    • 57

    Increasing Clouds

    • 34
    • 51

    Mostly Cloudy

    • 34
    • 49

    Slight Chance Rain/Snow

    • 36
    • 50

    Mostly Cloudy

    • 33
    • 47

    Chance Rain

    • 30
    • 43

    Chance Rain/Snow

Today 12 Nov Kootenai/Cabinet Region

Mostly cloudy. Patchy fog late in the morning. Highs in the 50s.

Tonight 12 Nov Kootenai/Cabinet Region

Mostly cloudy. Lows in the 30s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Costich Lake Temperature Statistics

November Temperature

Kalispell, Glacier Park International Airport (52.8 miles)

  • Lowest 3 November, 2026

    20.6 °F

  • Average November

    38.5 °F

  • Highest 7 November, 2026

    58.6 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (52.8 miles)

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  • Average Low 2021–2026

    33.4 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    57 °F
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