Click on a day for an hourly weather forecast
The temperatures in Vermont in September are comfortable with low of 18°C and and high up to 28°C.
You can expect about 3 to 8 days of rain in Vermont 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 Vermont in September 2025.
If you’re planning to visit Vermont in the near future, we highly recommend that you review the 14 day weather forecast for Vermont before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 8° / 0° | 6 | 22 | 3 | 129 mm | Bad | Vermont in January |
| February | 11° / 2° | 7 | 18 | 3 | 122 mm | Awful | Vermont in February |
| March | 15° / 5° | 8 | 22 | 1 | 133 mm | Ok | Vermont in March |
| April | 21° / 10° | 6 | 24 | 0 | 118 mm | Good | Vermont in April |
| May | 26° / 15° | 8 | 23 | 0 | 159 mm | Good | Vermont in May |
| June | 30° / 19° | 7 | 23 | 0 | 144 mm | Ok | Vermont in June |
| July | 32° / 21° | 8 | 23 | 0 | 166 mm | Ok | Vermont in July |
| August | 31° / 20° | 7 | 24 | 0 | 167 mm | Ok | Vermont in August |
| September | 28° / 18° | 6 | 24 | 0 | 168 mm | Perfect | Vermont in September |
| October | 22° / 12° | 4 | 27 | 0 | 93 mm | Good | Vermont in October |
| November | 15° / 5° | 5 | 25 | 0 | 117 mm | Good | Vermont in November |
| December | 11° / 3° | 6 | 24 | 1 | 120 mm | Ok | Vermont in December |