Fish Lake Weather Forecast

    • 54
    • 87

    Chance Rain Showers

    • 49
    • 75

    Slight Chance Thunderstorms

    • 51
    • 79

    Mostly Sunny

    • 55
    • 85

    Mostly Sunny

    • 52
    • 84

    Partly Sunny

    • 47
    • 74

    Mostly Sunny

Today 22 Aug Kootenai/Cabinet Region

Mostly cloudy. Slight chance of rain until late Afternoon, then slight chance of Showers and Thunderstorms late in the afternoon. Patchy smoke in the morning. Chance of precipitation 20 percent. Hot. Some Thunderstorms may produce gusty Winds. Highs in the 90s.

Tonight 22 Aug Kootenai/Cabinet Region

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy with a chance of rain Showers and a slight chance of Thunderstorms after midnight. Chance of precipitation 50 percent. Some Thunderstorms may produce gusty Winds. Lows in the 50s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fish Lake Temperature Statistics

August Temperature

Kalispell, Glacier Park International Airport (32.9 miles)

  • Lowest 5 August, 2026

    38.6 °F

  • Average August

    64.3 °F

  • Highest 1 August, 2026

    93.7 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (32.9 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    45.3 °F

  • Average High 2021–2026

    57 °F
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