Troy Airport Weather Forecast

    • 40
    • 70

    Slight Chance Rain

    • 43
    • 77

    Chance Rain

    • 43
    • 77

    Chance Rain

    • 43
    • 71

    Rain Showers Likely

    • 42
    • 73

    Partly Sunny

    • 44
    • 80

    Partly Sunny

Today 4 Sep Kootenai/Cabinet Region

Mostly cloudy. A 50 percent chance of Areas of rain in the morning. Patchy fog in the morning. Highs in the mid 60s to lower 70s.

Tonight 4 Sep Kootenai/Cabinet Region

Partly cloudy until early morning then becoming mostly cloudy. Patchy fog late in the night. Lows in the upper 30s to mid 40s.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Troy Airport Temperature Statistics

September Temperature

Boundary County Airport (24.2 miles)

  • Lowest 1 September, 2026

    46.4 °F

  • Average September

    59.1 °F

  • Highest 1 September, 2026

    78.8 °F

Climate (2021–2026)

Boundary County Airport (24.2 miles)

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  • Average Low 2021–2026

    37.8 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    56.7 °F
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