Arkoma, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arkoma, a town in Sebastian County, Oklahoma.
This Afternoon
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 102. South wind around 5 mph.
7-day forecast for Arkoma
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 100°F | Sunny | 5 mph S | 0% |
| Tonight | 75°F | Clear | 0 to 5 mph SE | 0% |
| Saturday | 100°F | Sunny | 0 to 10 mph SE | 0% |
| Saturday Night | 75°F | Partly Cloudy | 0 to 10 mph S | 0% |
| Sunday | 99°F | Mostly Sunny | 0 to 5 mph S | 2% |
| Sunday Night | 74°F | Mostly Cloudy then Chance Showers And Thunderstorms | 0 to 5 mph E | 41% |
| Monday | 94°F | Chance Showers And Thunderstorms | 0 to 5 mph NW | 41% |
| Monday Night | 70°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph N | 28% |
| Tuesday | 90°F | Mostly Sunny | 5 to 10 mph N | 14% |
| Tuesday Night | 66°F | Partly Cloudy | 5 to 10 mph NE | 9% |
| Wednesday | 90°F | Mostly Sunny | 5 mph NE | 6% |
| Wednesday Night | 66°F | Mostly Clear | 5 mph NE | 6% |
| Thursday | 90°F | Sunny | 5 mph NE | 5% |
| Thursday Night | 67°F | Partly Cloudy | 5 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Arkoma (35.330, -94.448). Updated through the day.
Growing snapshot for Arkoma
Last spring frost
Mar 25
First fall frost
Nov 6
Growing season
224 days
Hardiness zone
8a
More local growing data for Arkoma: nearby ZIP 72908 weather · frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Ft Smith Rgnl Ap, Ar (3 mi from Arkoma). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.