Fort Smith weather in September 2025

Q: 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.

Q: 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.

Q: 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.

Q: What is the chance of a cyclone 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.

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.

29
29°C max day temperature
8
8 hours of sunshine per day
8
8 days with some rainfall
16
16°C min night temperature
12
12 hours of daylight per day
M
Moderate heat & humidity
107
107 mm of monthly rainfall
8
8 (Very High) UV index

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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.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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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Arkansas - quick facts
Flight time^✝	12 hours
Time difference	UK -6 hours
Language(s)	English
Currency	US Dollar
Electricity	A + B plug (120V)
Driving side	Right
Visa^✝	Yes
Why visit?	Nature
Tourist info	Arkansas Department of Parks, Heritage, & Tourism