Fort Smith weather in August 2025

Expect 93°F daytime maximum temperatures in the shade with on average 10 hours of sunshine per day in Fort Smith in August. Check more long-term weather averages for Fort Smith in August before you book your next holiday to Arkansas in 2025/2026.

  • 93°F maximum daytime temperature in August in Fort Smith93
    93°F max day temperature
  • 10 hours of sunshine per day
  • 7 days with some rainfall in August in Fort Smith7
    7 days with some rainfall
  • 68°F minimum night-time temperature in August in Fort Smith68
    68°F min night temperature
  • 13 hours of daylight per day in August in Fort Smith13
    13 hours of daylight per day
  • Very high heat & humidity in August in Fort SmithVH
    Very High heat & humidity
  • 3.1 inches monthly rainfall in August in Fort Smith3.1
    3.1 inches of monthly rainfall
  • UV (maximum) index 9 (Very High) in August in Fort Smith9
    9 (Very High) UV index

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The August 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)  |  Imperial (°F)

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How hot is it in Fort Smith in August?

Daytime temperatures usually reach 93°F in Fort Smith in August with very high heat and humidity, falling to 68°F at night.

How sunny is it in Fort Smith in August?

There are normally 10 hours of bright sunshine each day in Fort Smith in August - that's 71% of daylight hours.

Does it rain in Fort Smith in August?

There are usually 7 days with some rain in Fort Smith in August and the average monthly rainfall is 3.1 inches.

Fort Smith August sunrise & sunset times

Browse the sunrise and sunset times for Fort Smith in August 2025. Select a month to view Fort Smith sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:27 19:21
Saturday, 16th August 2025 05:38 19:05
Sunday, 31st August 2025 05:50 18:46

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