Troy Airport Weather Forecast

    • 47
    • 83

    Decreasing Clouds

    • 47
    • 83

    Mostly Sunny

    • 48
    • 84

    Mostly Sunny

    • 48
    • 83

    Partly Sunny

    • 46
    • 76

    Partly Sunny

    • 46
    • 73

    Mostly Cloudy

    • 44
    • 71

    Slight Chance Rain

Today 19 Sep Kootenai/Cabinet Region

Mostly cloudy with a 20 percent chance of rain. Highs in the 60s.

Tonight 19 Sep Kootenai/Cabinet Region

Mostly clear. Lows in the 40s to lower 50s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Troy Airport Temperature Statistics

September Temperature

Boundary County Airport (24.2 miles)

  • Lowest 17 September, 2026

    41 °F

  • Average September

    57 °F

  • Highest 1 September, 2026

    78.8 °F

Climate (2021–2026)

Boundary County Airport (24.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    37.9 °F

  • Average 2021–2026

    47.3 °F

  • Average High 2021–2026

    56.6 °F
Get WillyWeather+ to remove ads