Grandfield, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grandfield, a city in Tillman County, Oklahoma.
Overnight
73°F
Clear
Clear, with a low around 73. South southeast wind around 10 mph.
7-day forecast for Grandfield
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 73°F | Clear | 10 mph SSE | 0% |
| Tuesday | 106°F | Sunny | 12 mph S | 0% |
| Tuesday Night | 77°F | Mostly Clear | 12 mph S | 1% |
| Wednesday | 105°F | Sunny | 10 to 14 mph SSW | 1% |
| Wednesday Night | 77°F | Mostly Clear | 10 to 14 mph S | 0% |
| Thursday | 104°F | Sunny | 13 mph SSW | 4% |
| Thursday Night | 76°F | Mostly Clear | 13 mph SSE | 4% |
| Friday | 102°F | Sunny | 12 mph S | 12% |
| Friday Night | 74°F | Mostly Clear | 9 to 13 mph SSE | 12% |
| Saturday | 102°F | Sunny | 8 to 12 mph S | 8% |
| Saturday Night | 74°F | Mostly Clear | 13 mph S | 7% |
| Sunday | 102°F | Sunny | 9 to 13 mph S | 1% |
| Sunday Night | 75°F | Mostly Clear | 14 mph S | 1% |
| Monday | 102°F | Sunny | 13 to 16 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Grandfield (34.231, -98.687). Updated through the day.
Growing snapshot for Grandfield
Last spring frost
Mar 31
First fall frost
Nov 6
Growing season
219 days
Hardiness zone
8a
More local growing data for Grandfield: nearby ZIP 73546 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grandfield 3W Mesonet, Ok (1.6 mi from Grandfield). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.