Big Therriault Lake Weather Forecast

    • 48
    • 77

    Chance Thunderstorms

    • 50
    • 81

    Partly Sunny

    • 48
    • 82

    Chance Rain Showers

    • 47
    • 77

    Mostly Sunny

    • 48
    • 77

    Mostly Sunny

    • 48
    • 78

    Partly Sunny

Today 15 Jul Kootenai/Cabinet Region

Mostly sunny. A 30 percent chance of Showers and Thunderstorms in the afternoon. Some Thunderstorms may produce small hail. Highs in the upper 80s to mid 90s.

Tonight 15 Jul Kootenai/Cabinet Region

Mostly clear. Lows in the mid 50s to lower 60s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Big Therriault Lake Temperature Statistics

July Temperature

Kalispell, Glacier Park International Airport (51.6 miles)

  • Lowest 5 July, 2026

    40.6 °F

  • Average July

    66 °F

  • Highest 11 July, 2026

    89.7 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (51.6 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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