Big Therriault Lake Weather Forecast

    • 40
    • 53

    Rain Showers

    • 45
    • 65

    Mostly Sunny

    • 47
    • 71

    Mostly Sunny

    • 47
    • 71

    Mostly Sunny

    • 45
    • 71

    Mostly Sunny

    • 46
    • 70

    Mostly Sunny

Today 22 Jul Kootenai/Cabinet Region

Rain Showers likely and a chance of Thunderstorms. Patchy fog in the morning. Chance of precipitation near 100 percent. Highs in the mid 60s to lower 70s.

Tonight 22 Jul Kootenai/Cabinet Region

Rain Showers likely and a chance of Thunderstorms in the Evening, then partly cloudy after midnight. Areas of fog in the Evening, then patchy fog after midnight. Chance of precipitation 60 percent. Lows in the mid 40s to lower 50s.

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Big Therriault Lake Temperature Statistics

July Temperature

Kalispell, Glacier Park International Airport (51.6 miles)

  • Lowest 4 July, 2025

    42.7 °F

  • Average July

    67.3 °F

  • Highest 8 July, 2025

    92.6 °F

Climate (2020–Present)

Kalispell, Glacier Park International Airport (51.6 miles)

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  • Average Low 2020–2025

    32.9 °F

  • Average 2020–2025

    45.1 °F

  • Average High 2020–2025

    56.8 °F
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