Fort Smith weather in September
Temperature, rain and sunshine in September: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in September
Good
Best time to visit: May – August
What is the weather like in Fort Smith in September?
In September, Fort Smith is cool: daytime highs average 14 °C, and nights cool down to about 7 °C. Expect around 6 hours of sunshine a day. Rain falls on about 8 days, adding up to 40 mm. All in all, September is a good month for a holiday in Fort Smith.
September compared
How the weather changes from August to October. Tap a month to open it.
| AugustAug | SeptemberSep | OctoberOct | |
|---|---|---|---|
| Score | 84 | 64 | 24 |
| Day | 21° | 14° | 4° |
| Night | 12° | 7° | −1° |
| Sun | 8 h | 6 h | 3 h |
| Rain days | 9 | 8 | 7 |
More details for September
- Daylight
- 13 h 0 min06:53 – 19:53
- UV index
- 2 · lowclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 16 km/haverage daily peakAll months
- Cloud cover
- 66 %on averageAll months
- Hot days
- 0 days30 °C or more
- Snow days
- 0 days1 cm or more of fresh snowAll months
- Time zone
- UTC−6America/Edmonton
How the score comes together
- Temperatureweight 50 %68 %
- Sunshineweight 20 %42 %
- Few rainy daysweight 30 %71 %
Each factor is rated from 0 to 100 % and weighted for the travel style “Nature escape”.
What to pack in September
- A jumper for the evenings
- Rain jacket or umbrella
Fort Smith in September: quick answers
Is Fort Smith hot in September?
No. In September, Fort Smith is cool: daytime highs average 14 °C and nights drop to about 7 °C.
Does it rain much in Fort Smith in September?
Rain falls on about 8 days, adding up to 40 mm.
Fort Smith month by month
The whole year in Fort SmithAll destinations: CanadaWhere to go in September
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences