Grandfield, OK Weather & Growing Conditions
Today
102°F
Sunny
Sunny, with a high near 102. Heat index values as high as 104. South wind around 14 mph, with gusts as high as 21 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 102°F | Sunny | 14 mph S | 0% |
| Tonight | 76°F | Partly Cloudy | 14 mph S | 3% |
| Sunday | 101°F | Showers And Thunderstorms Likely | 10 to 14 mph SSW | 59% |
| Sunday Night | 68°F | Showers And Thunderstorms Likely | 6 to 10 mph NE | 59% |
| Monday | 92°F | Chance Rain Showers | 9 to 13 mph NE | 28% |
| Monday Night | 64°F | Chance Showers And Thunderstorms | 13 mph NE | 30% |
| Tuesday | 87°F | Chance Rain Showers | 13 mph NE | 30% |
| Tuesday Night | 61°F | Partly Cloudy then Slight Chance Rain Showers | 9 to 13 mph ENE | 15% |
| Wednesday | 89°F | Slight Chance Rain Showers then Mostly Sunny | 10 mph ENE | 15% |
| Wednesday Night | 64°F | Partly Cloudy | 10 mph E | 10% |
| Thursday | 91°F | Partly Sunny | 8 mph ESE | 12% |
| Thursday Night | 66°F | Mostly Cloudy | 9 mph ESE | 9% |
| Friday | 93°F | Partly Sunny | 9 mph SE | 12% |
| Friday Night | 67°F | Partly Cloudy | 10 mph ESE | 10% |
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 Sep 19, 2026.