Fish Lake Weather Forecast

    • 40
    • 68

    Rain Likely

    • 34
    • 50

    Slight Chance Rain

    • 38
    • 59

    Partly Sunny

    • 40
    • 59

    Partly Sunny

    • 42
    • 56

    Chance Rain

    • 41
    • 56

    Slight Chance Rain

Today 25 Sep Kootenai/Cabinet Region

Areas of rain early in the afternoon. Rain likely late in the afternoon. Chance of rain 70 percent. Highs in the mid 60s to lower 70s. Southeast Winds to 15 Mph with Gusts to around 30 Mph shifting to the southwest 15 to 20 Mph in the afternoon.

Tonight 25 Sep Kootenai/Cabinet Region

Rain likely in the Evening, then a chance of rain after midnight. Chance of rain 70 percent. Lows in the mid 30s to lower 40s. South Winds 15 to 20 Mph with Gusts to around 30 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fish Lake Temperature Statistics

September Temperature

Kalispell, Glacier Park International Airport (32.9 miles)

  • Lowest 17 September, 2026

    38.6 °F

  • Average September

    56.9 °F

  • Highest 1 September, 2026

    84.7 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (32.9 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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