Click on a day for an hourly weather forecast
The temperatures in Troy in September are comfortable with low of 15°C and and high up to 23°C.
You can expect about 3 to 8 days of rain in Troy during the month of September. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Our weather forecast can give you a great sense of what weather to expect in Troy in September 2025.
If you’re planning to visit Troy in the near future, we highly recommend that you review the 14 day weather forecast for Troy before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -2° / -7° | 4 | 10 | 17 | 50 mm | Awful | Troy in January |
| February | -1° / -7° | 4 | 9 | 16 | 56 mm | Awful | Troy in February |
| March | 6° / -1° | 6 | 16 | 9 | 60 mm | Awful | Troy in March |
| April | 12° / 4° | 8 | 19 | 3 | 105 mm | Awful | Troy in April |
| May | 20° / 10° | 7 | 24 | 0 | 114 mm | Ok | Troy in May |
| June | 25° / 15° | 6 | 24 | 0 | 110 mm | Perfect | Troy in June |
| July | 27° / 19° | 5 | 26 | 0 | 100 mm | Perfect | Troy in July |
| August | 27° / 18° | 5 | 26 | 0 | 91 mm | Perfect | Troy in August |
| September | 23° / 15° | 5 | 25 | 0 | 77 mm | Perfect | Troy in September |
| October | 16° / 9° | 5 | 25 | 0 | 68 mm | Good | Troy in October |
| November | 8° / 2° | 5 | 19 | 6 | 54 mm | Bad | Troy in November |
| December | 2° / -2° | 5 | 14 | 13 | 48 mm | Awful | Troy in December |