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Fort Smith weather in September 2025
Expect 29°C daytime maximum temperatures in the shade with on average 8 hours of sunshine per day in Fort Smith in September. Check more long-term weather averages for Fort Smith in September before you book your next holiday to Arkansas in 2025/2026.
- 2929°C max day temperature
- 8 hours of sunshine per day
- 88 days with some rainfall
- 1616°C min night temperature
- 1212 hours of daylight per day
- MModerate heat & humidity
- 107107 mm of monthly rainfall
- 88 (Very High) UV index
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Recommended for Arkansas
The September weather guide for Arkansas (Fort Smith) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How hot is it in Fort Smith in September?
Daytime temperatures usually reach 29°C in Fort Smith in September with moderate heat and humidity, falling to 16°C at night.
How sunny is it in Fort Smith in September?
There are normally 8 hours of bright sunshine each day in Fort Smith in September - that's 62% of daylight hours.
Does it rain in Fort Smith in September?
There are usually 8 days with some rain in Fort Smith in September and the average monthly rainfall is 107mm.
What is the chance of a hurricane in Fort Smith in September?
On average less than 1 day in September in Fort Smith is likely to be affected by the passage of one or more tropical storms.
Fort Smith September sunrise & sunset times
Browse the sunrise and sunset times for Fort Smith in September 2025. Select a month to view Fort Smith sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
Date | Sunrise times | Sunset times |
---|---|---|
Monday, 1st September 2025 | 05:50 | 18:44 |
Monday, 15th September 2025 | 06:01 | 18:24 |
Tuesday, 30th September 2025 | 06:12 | 18:02 |
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