Fort Smith, AR Weather & Growing Conditions
Tonight
50°F
Mostly Cloudy
Mostly cloudy, with a low around 50. West wind 5 to 10 mph, with gusts as high as 25 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 50°F | Mostly Cloudy | 5 to 10 mph W | 8% |
| Wednesday | 67°F | Sunny | 5 to 10 mph W | 0% |
| Wednesday Night | 48°F | Mostly Clear | 0 mph | 0% |
| Thursday | 70°F | Mostly Sunny | 0 to 5 mph W | 10% |
| Thursday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph NW | 16% |
| Friday | 64°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Friday Night | 45°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 62°F | Partly Sunny | 0 mph | 0% |
| Saturday Night | 43°F | Partly Cloudy | 0 mph | 5% |
| Sunday | 65°F | Sunny | 0 to 5 mph NW | 4% |
| Sunday Night | 42°F | Clear | 0 to 5 mph NW | 1% |
| Monday | 68°F | Sunny | 0 mph | 0% |
| Monday Night | 45°F | Mostly Clear | 0 mph | 0% |
| Tuesday | 71°F | Sunny | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fort Smith, AR
Last spring frost
Mar 25
First fall frost
Nov 6
Growing season
224 days
Hardiness zone
8a
Explore more for Fort Smith, AR: full frost dates · planting calendar · Arkansas frost dates
Climate data from the nearest NOAA station, Ft Smith Rgnl Ap, Ar (1.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.