Throop Lake Weather Forecast

    • 51
    • 84

    Increasing Clouds

    • 42
    • 71

    Rain

    • 38
    • 62

    Chance Rain

    • 39
    • 66

    Partly Sunny

    • 40
    • 65

    Partly Sunny

    • 40
    • 66

    Partly Sunny

Today 24 Sep Kootenai/Cabinet Region

Partly cloudy. Highs in the mid 70s to lower 80s.

Tonight 24 Sep Kootenai/Cabinet Region

Mostly cloudy. Lows in the mid 40s to lower 50s.

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  • Temperature Real-Time

Throop Lake Temperature Statistics

September Temperature

Boundary County Airport (29.2 miles)

  • Lowest 17 September, 2026

    41 °F

  • Average September

    57.5 °F

  • Highest 21 September, 2026

    80.6 °F

Climate (2021–2026)

Boundary County Airport (29.2 miles)

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  • Average Low 2021–2026

    37.9 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    56.7 °F
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