Fish Lake Weather Forecast

    • 48
    • 68

    Rain Showers Likely

    • 46
    • 56

    Rain

    • 44
    • 63

    Rain Likely

    • 47
    • 70

    Mostly Sunny

    • 46
    • 72

    Chance Rain

    • 42
    • 63

    Chance Rain Showers

Today 6 Sep Kootenai/Cabinet Region

Mostly cloudy. Areas of rain in the Morning, then chance of rain Showers and a slight chance of Thunderstorms in the afternoon. Chance of precipitation 50 percent. Highs in the upper 60s to mid 70s.

Tonight 6 Sep Kootenai/Cabinet Region

Mostly cloudy. Chance of Showers and Thunderstorms in the Evening, then a chance of rain after midnight. Chance of precipitation 50 percent. Lows in the upper 40s to mid 50s.

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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 1 September, 2026

    41.6 °F

  • Average September

    58.8 °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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