Grandfield, OK Weather & Growing Conditions
Today
106°F
Sunny
Sunny, with a high near 106. Heat index values as high as 105. South wind around 13 mph, with gusts as high as 20 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 106°F | Sunny | 13 mph S | 0% |
| Tonight | 77°F | Mostly Clear | 13 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 | 10 to 14 mph SSW | 4% |
| Thursday Night | 76°F | Mostly Clear | 10 to 14 mph SSE | 4% |
| Friday | 102°F | Sunny | 9 to 13 mph S | 11% |
| Friday Night | 74°F | Mostly Clear | 9 to 13 mph SSE | 11% |
| 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% |
| Monday Night | 75°F | Mostly Clear | 16 mph S | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Grandfield, OK
Last spring frost
Mar 31
First fall frost
Nov 6
Growing season
219 days
Hardiness zone
8a
Explore more for Grandfield, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Grandfield 3W Mesonet, Ok (1.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.