Fish Lake Weather Forecast

    • 43
    • 59

    Rain Showers

    • 41
    • 45

    Rain

    • 41
    • 53

    Mostly Sunny

    • 46
    • 61

    Mostly Sunny

    • 48
    • 62

    Partly Sunny

    • 45
    • 58

    Chance Rain

Today 6 Sep Northern Clearwater Mountains

Partly cloudy. Chance of rain Showers and a slight chance of Thunderstorms late in the afternoon. Chance of precipitation 30 percent. Highs in the 70s.

Tonight 6 Sep Northern Clearwater Mountains

Chance of Showers and Thunderstorms in the Evening, then rain likely after midnight. Chance of precipitation 90 percent. Lows in the upper 30s to mid 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Fish Lake Temperature Statistics

September Temperature

Missoula, Missoula International Airport (39.1 miles)

  • Lowest 1 September, 2026

    45.6 °F

  • Average September

    59.5 °F

  • Highest 1 September, 2026

    88.6 °F

Climate (2021–2026)

Missoula, Missoula International Airport (39.1 miles)

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  • Average Low 2021–2026

    36 °F

  • Average 2021–2026

    47.6 °F

  • Average High 2021–2026

    59.8 °F
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