Fort Smith, AR Weather & Growing Conditions
Tonight
74°F
Clear
Clear, with a low around 74. Southeast wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 74°F | Clear | 0 to 5 mph SE | 0% |
| Saturday | 100°F | Sunny | 0 to 10 mph S | 0% |
| Saturday Night | 73°F | Mostly Clear | 0 to 10 mph S | 0% |
| Sunday | 100°F | Mostly Sunny | 0 to 5 mph S | 1% |
| Sunday Night | 73°F | Mostly Cloudy then Chance Showers And Thunderstorms | 0 to 5 mph SE | 34% |
| Monday | 94°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 34% |
| Monday Night | 69°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph N | 27% |
| Tuesday | 90°F | Mostly Sunny | 5 to 10 mph N | 14% |
| Tuesday Night | 65°F | Partly Cloudy | 5 to 10 mph NE | 7% |
| Wednesday | 90°F | Mostly Sunny | 5 mph NE | 5% |
| Wednesday Night | 65°F | Mostly Clear | 5 mph NE | 5% |
| Thursday | 90°F | Sunny | 5 mph E | 4% |
| Thursday Night | 65°F | Partly Cloudy | 5 mph NE | 5% |
| Friday | 89°F | Mostly Sunny | 5 mph E | 5% |
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 (4.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.