Click on a day for an hourly weather forecast
The temperatures in Sherbrooke in September are quite cold with temperatures between 8°C and 19°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Sherbrooke 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 Sherbrooke in September 2025.
If you’re planning to visit Sherbrooke in the near future, we highly recommend that you review the 14 day weather forecast for Sherbrooke before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -7° / -14° | 4 | 3 | 25 | 115 mm | Awful | Sherbrooke in January |
| February | -5° / -13° | 4 | 1 | 25 | 117 mm | Awful | Sherbrooke in February |
| March | 0° / -8° | 7 | 4 | 21 | 124 mm | Awful | Sherbrooke in March |
| April | 8° / -1° | 9 | 9 | 12 | 150 mm | Awful | Sherbrooke in April |
| May | 17° / 6° | 9 | 20 | 1 | 162 mm | Ok | Sherbrooke in May |
| June | 21° / 10° | 10 | 20 | 0 | 179 mm | Ok | Sherbrooke in June |
| July | 24° / 13° | 9 | 22 | 0 | 146 mm | Good | Sherbrooke in July |
| August | 23° / 12° | 7 | 24 | 0 | 148 mm | Good | Sherbrooke in August |
| September | 19° / 8° | 7 | 23 | 0 | 120 mm | Ok | Sherbrooke in September |
| October | 11° / 3° | 9 | 18 | 4 | 143 mm | Awful | Sherbrooke in October |
| November | 4° / -3° | 7 | 10 | 13 | 117 mm | Awful | Sherbrooke in November |
| December | -3° / -9° | 6 | 3 | 23 | 125 mm | Awful | Sherbrooke in December |