Click on a day for an hourly weather forecast
The temperatures in Vail 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 Vail 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 Vail in September 2025.
If you’re planning to visit Vail in the near future, we highly recommend that you review the 14 day weather forecast for Vail before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 7° / 0° | 6 | 22 | 3 | 111 mm | Bad | Vail in January |
| February | 9° / 2° | 7 | 18 | 3 | 175 mm | Awful | Vail in February |
| March | 15° / 7° | 9 | 20 | 2 | 197 mm | Bad | Vail in March |
| April | 20° / 11° | 7 | 23 | 0 | 190 mm | Ok | Vail in April |
| May | 26° / 17° | 9 | 22 | 0 | 208 mm | Good | Vail in May |
| June | 31° / 21° | 8 | 22 | 0 | 150 mm | Ok | Vail in June |
| July | 31° / 22° | 8 | 23 | 0 | 158 mm | Ok | Vail in July |
| August | 31° / 21° | 8 | 23 | 0 | 162 mm | Ok | Vail in August |
| September | 28° / 18° | 6 | 24 | 0 | 127 mm | Perfect | Vail in September |
| October | 22° / 12° | 6 | 25 | 0 | 138 mm | Good | Vail in October |
| November | 15° / 7° | 6 | 24 | 1 | 161 mm | Good | Vail in November |
| December | 10° / 3° | 6 | 23 | 1 | 168 mm | Ok | Vail in December |