Grayson, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Grayson, a town in Okmulgee County, Oklahoma.
Today
100°F
Sunny
Sunny, with a high near 100. Heat index values as high as 104. Southeast wind around 5 mph.
7-day forecast for Grayson
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 100°F | Sunny | 5 mph SE | 0% |
| Tonight | 75°F | Mostly Clear | 5 mph SE | 2% |
| Wednesday | 102°F | Sunny | 5 mph S | 4% |
| Wednesday Night | 75°F | Partly Cloudy | 5 mph S | 4% |
| Thursday | 100°F | Mostly Sunny | 5 mph S | 14% |
| Thursday Night | 75°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 28% |
| Friday | 96°F | Chance Showers And Thunderstorms | 5 mph S | 32% |
| Friday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 17% |
| Saturday | 97°F | Mostly Sunny | 0 to 5 mph S | 14% |
| Saturday Night | 74°F | Mostly Clear | 5 mph S | 4% |
| Sunday | 97°F | Sunny | 5 to 10 mph S | 2% |
| Sunday Night | 74°F | Clear | 5 to 10 mph S | 1% |
| Monday | 97°F | Sunny | 5 to 10 mph S | 1% |
| Monday Night | 75°F | Mostly Clear | 5 to 10 mph S | 1% |
Forecast source: National Weather Service (api.weather.gov) for Grayson (35.505, -95.872). Updated through the day.
Growing snapshot for Grayson
Last spring frost
Apr 8
First fall frost
Oct 28
Growing season
203 days
Hardiness zone
7b
More local growing data for Grayson: nearby ZIP 74431 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Okmulgee Wtr Wks, Ok (12.5 mi from Grayson). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.