Click on a day for an hourly weather forecast
The weather in Fort Smith in September is hot. The average temperatures are between 17°C and 30°C. Usually the days in September are hot while the nights are a bit cooler.
You can expect about 3 to 8 days of rain in Fort Smith 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 Fort Smith in September 2024.
If you’re planning to visit Fort Smith in the near future, we highly recommend that you review the 14 day weather forecast for Fort Smith before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | 9° / 0° | 4 | 25 | 2 | 72 mm | Bad | Fort Smith in January |
| February | 11° / 1° | 4 | 21 | 3 | 71 mm | Bad | Fort Smith in February |
| March | 17° / 6° | 6 | 24 | 1 | 113 mm | Good | Fort Smith in March |
| April | 21° / 10° | 7 | 23 | 0 | 147 mm | Ok | Fort Smith in April |
| May | 26° / 14° | 8 | 23 | 0 | 186 mm | Good | Fort Smith in May |
| June | 32° / 19° | 7 | 23 | 0 | 99 mm | Ok | Fort Smith in June |
| July | 35° / 21° | 7 | 24 | 0 | 106 mm | Bad | Fort Smith in July |
| August | 34° / 20° | 7 | 24 | 0 | 122 mm | Bad | Fort Smith in August |
| September | 30° / 17° | 5 | 25 | 0 | 101 mm | Good | Fort Smith in September |
| October | 23° / 11° | 5 | 26 | 0 | 115 mm | Perfect | Fort Smith in October |
| November | 16° / 6° | 4 | 26 | 0 | 87 mm | Good | Fort Smith in November |
| December | 11° / 2° | 4 | 25 | 1 | 103 mm | Ok | Fort Smith in December |