Big Therriault Lake Weather Forecast

    • 34
    • 52

    Slight Chance Rain

    • 42
    • 65

    Mostly Sunny

    • 47
    • 73

    Mostly Cloudy

    • 39
    • 63

    Rain Showers Likely

    • 36
    • 55

    Chance Rain Showers

    • 38
    • 60

    Partly Sunny

    • 40
    • 64

    Chance Rain

Today 30 Aug Kootenai/Cabinet Region

Mostly cloudy. A 50 percent chance of rain Showers until late afternoon. Highs in the mid 60s to lower 70s.

Tonight 30 Aug Kootenai/Cabinet Region

Mostly clear. Patchy smoke until early morning. Lows in the mid 30s to lower 40s.

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  • Temperature Real-Time

Big Therriault Lake Temperature Statistics

August Temperature

Kalispell, Glacier Park International Airport (51.6 miles)

  • Lowest 5 August, 2026

    38.6 °F

  • Average August

    65.3 °F

  • Highest 1 August, 2026

    93.7 °F

Climate (2021–2026)

Kalispell, Glacier Park International Airport (51.6 miles)

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  • Average Low 2021–2026

    33.3 °F

  • Average 2021–2026

    45.4 °F

  • Average High 2021–2026

    57 °F
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