Hartshorne, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hartshorne, a city in Pittsburg County, Oklahoma.
Overnight
48°F
Mostly Clear
Mostly clear, with a low around 48. West wind 0 to 5 mph.
7-day forecast for Hartshorne
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 48°F | Mostly Clear | 0 to 5 mph W | 0% |
| Wednesday | 70°F | Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 43°F | Mostly Clear | 0 mph | 0% |
| Thursday | 71°F | Sunny | 0 to 5 mph SW | 4% |
| Thursday Night | 45°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph N | 17% |
| Friday | 64°F | Mostly Sunny | 5 to 10 mph N | 0% |
| Friday Night | 41°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 64°F | Mostly Sunny | 0 to 5 mph N | 0% |
| Saturday Night | 38°F | Partly Cloudy | 0 mph | 1% |
| Sunday | 65°F | Sunny | 0 to 5 mph N | 0% |
| Sunday Night | 38°F | Mostly Clear | 0 mph | 0% |
| Monday | 69°F | Sunny | 0 to 5 mph S | 1% |
| Monday Night | 40°F | Clear | 0 mph | 2% |
| Tuesday | 71°F | Sunny | 0 to 5 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Hartshorne (34.839, -95.562). Updated through the day.
Growing snapshot for Hartshorne
Last spring frost
Mar 31
First fall frost
Nov 3
Growing season
216 days
Hardiness zone
7b
More local growing data for Hartshorne: nearby ZIP 74546 weather · frost dates · planting calendar · Oklahoma frost dates
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Climate data from the nearest NOAA station, Mcalester Rgnl Ap, Ok (11.7 mi from Hartshorne). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.