Troy Airport Weather Forecast

    • 47
    • 88

    Mostly Sunny

    • 46
    • 88

    Mostly Sunny

    • 45
    • 88

    Mostly Sunny

    • 47
    • 85

    Mostly Sunny

    • 41
    • 72

    Slight Chance Rain Showers

    • 42
    • 75

    Mostly Sunny

    • 44
    • 83

    Partly Sunny

Today 17 Sep Kootenai/Cabinet Region

Mostly sunny. Areas of fog early in the morning. Highs in the 80s.

Tonight 17 Sep Kootenai/Cabinet Region

Mostly clear. Patchy fog late in the night. Lows in the mid 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 9 September, 2025

    50 °F

  • Average September

    68.1 °F

  • Highest 2 September, 2025

    95 °F

Climate (2020–Present)

Boundary County Airport (24.2 miles)

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

  • Average Low 2020–2025

    37.5 °F

  • Average 2020–2025

    47 °F

  • Average High 2020–2025

    56.4 °F
Get WillyWeather+ to remove ads