Gleason Lake Weather Forecast

    • 45
    • 66

    Rain Showers Likely

    • 38
    • 49

    Rain/Snow

    • 37
    • 43

    Rain/Snow

    • 36
    • 49

    Chance Rain

    • 40
    • 57

    Partly Sunny

    • 42
    • 62

    Slight Chance Thunderstorms

Today 29 May Bitterroot/Sapphire Mountains

Partly cloudy. A 50 percent chance of Showers and Thunderstorms in the afternoon. Highs in the 70s.

Tonight 29 May Bitterroot/Sapphire Mountains

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

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Gleason Lake Temperature Statistics

May Temperature

Missoula, Missoula International Airport (43.5 miles)

  • Lowest 18 May, 2026

    26.7 °F

  • Average May

    54.8 °F

  • Highest 25 May, 2026

    85.6 °F

Climate (2021–Present)

Missoula, Missoula International Airport (43.5 miles)

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  • Average Low 2021–2026

    36.1 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    59.9 °F
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