Troy Airport Weather Forecast

    • 45
    • 75

    Increasing Clouds

    • 49
    • 82

    Mostly Cloudy

    • 40
    • 72

    Rain Showers Likely

    • 36
    • 59

    Mostly Cloudy

    • 38
    • 63

    Mostly Cloudy

    • 38
    • 63

    Mostly Cloudy

Today 23 Sep Kootenai/Cabinet Region

Partly cloudy. Highs in the upper 60s to mid 70s.

Tonight 23 Sep Kootenai/Cabinet Region

Mostly cloudy. Lows in the 40s.

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

    57.3 °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

    56.7 °F
Get WillyWeather+ to remove ads