Troy Airport Weather Forecast

    • 50
    • 87

    Increasing Clouds

    • 51
    • 90

    Sunny

    • 54
    • 95

    Partly Sunny

    • 52
    • 87

    Chance Rain

    • 49
    • 86

    Chance Rain

    • 48
    • 80

    Chance Rain

Today 4 Sep Kootenai/Cabinet Region

Mostly sunny. Areas of smoke. Not as warm. Highs in the upper 70s to mid 80s. Northeast Winds to 15 Mph.

Tonight 4 Sep Kootenai/Cabinet Region

Mostly clear. Areas of smoke in the evening. Haze after midnight. Lows in the mid 40s to lower 50s.

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Troy Airport Temperature Statistics

September Temperature

Boundary County Airport (24.2 miles)

  • Lowest 1 September, 2025

    60.8 °F

  • Average September

    75.4 °F

  • Highest 1 September, 2025

    89.6 °F

Climate (2020–Present)

Boundary County Airport (24.2 miles)

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  • Average Low 2020–2025

    37.4 °F

  • Average 2020–2025

    46.9 °F

  • Average High 2020–2025

    56.4 °F
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