Hartshorne, OK Weather & Growing Conditions
Today
100°F
Mostly Sunny
Mostly sunny, with a high near 100. Heat index values as high as 101. South wind 5 to 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Mostly Sunny | 5 to 10 mph S | 0% |
| Tonight | 75°F | Mostly Clear | 5 mph S | 2% |
| Sunday | 97°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 20% |
| Sunday Night | 71°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph SE | 58% |
| Monday | 92°F | Showers And Thunderstorms Likely | 0 to 5 mph E | 58% |
| Monday Night | 67°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph N | 15% |
| Tuesday | 87°F | Mostly Sunny | 5 to 10 mph N | 9% |
| Tuesday Night | 64°F | Partly Cloudy | 0 to 5 mph NE | 8% |
| Wednesday | 89°F | Mostly Sunny | 0 to 5 mph NE | 6% |
| Wednesday Night | 64°F | Partly Cloudy | 0 to 5 mph NE | 5% |
| Thursday | 90°F | Mostly Sunny | 0 to 5 mph E | 4% |
| Thursday Night | 65°F | Partly Cloudy | 0 mph | 4% |
| Friday | 91°F | Mostly Sunny | 0 to 5 mph E | 5% |
| Friday Night | 66°F | Partly Cloudy | 0 mph | 7% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Hartshorne, OK
Last spring frost
Mar 31
First fall frost
Nov 3
Growing season
216 days
Hardiness zone
7b
Explore more for Hartshorne, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Mcalester Rgnl Ap, Ok (11.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.