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.
Troy Airport Temperature Statistics
September Temperature
Boundary County Airport (24.2 miles)
Lowest 9 September, 2025
50 °FAverage September
68.1 °FHighest 2 September, 2025
95 °F
Climate (2020–Present)
Boundary County Airport (24.2 miles)
Average Low 2020–2025
37.5 °FAverage 2020–2025
47 °FAverage High 2020–2025
56.4 °F