Click on a day for an hourly weather forecast
The temperatures in Sheridan in September are quite cold with temperatures between 9°C and 20°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Sheridan 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 Sheridan in September 2025.
If you’re planning to visit Sheridan in the near future, we highly recommend that you review the 14 day weather forecast for Sheridan before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -3° / -10° | 5 | 11 | 16 | 58 mm | Awful | Sheridan in January |
| February | -4° / -11° | 5 | 5 | 19 | 68 mm | Awful | Sheridan in February |
| March | 3° / -5° | 8 | 9 | 14 | 99 mm | Awful | Sheridan in March |
| April | 8° / -2° | 10 | 8 | 12 | 153 mm | Awful | Sheridan in April |
| May | 15° / 4° | 15 | 14 | 2 | 218 mm | Bad | Sheridan in May |
| June | 22° / 10° | 10 | 20 | 0 | 142 mm | Ok | Sheridan in June |
| July | 28° / 13° | 7 | 24 | 0 | 131 mm | Good | Sheridan in July |
| August | 26° / 13° | 6 | 25 | 0 | 115 mm | Perfect | Sheridan in August |
| September | 20° / 9° | 4 | 25 | 0 | 82 mm | Good | Sheridan in September |
| October | 10° / 1° | 5 | 20 | 6 | 99 mm | Bad | Sheridan in October |
| November | 3° / -5° | 3 | 16 | 11 | 52 mm | Awful | Sheridan in November |
| December | -3° / -10° | 5 | 11 | 15 | 44 mm | Awful | Sheridan in December |