Dewar, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dewar, a town in Okmulgee County, Oklahoma.
Tonight
73°F
Mostly Clear
Mostly clear, with a low around 73. South wind around 5 mph.
7-day forecast for Dewar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Mostly Clear | 5 mph S | 0% |
| Saturday | 99°F | Sunny | 5 to 10 mph S | 1% |
| Saturday Night | 73°F | Mostly Clear | 5 to 10 mph S | 2% |
| Sunday | 97°F | Chance Showers And Thunderstorms | 5 mph S | 45% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 5 mph W | 66% |
| Monday | 89°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 61% |
| Monday Night | 63°F | Partly Cloudy | 5 mph N | 10% |
| Tuesday | 84°F | Mostly Sunny | 5 to 10 mph N | 12% |
| Tuesday Night | 61°F | Partly Cloudy | 5 mph NE | 4% |
| Wednesday | 85°F | Mostly Sunny | 5 mph NE | 9% |
| Wednesday Night | 61°F | Partly Cloudy | 0 to 5 mph NE | 4% |
| Thursday | 86°F | Mostly Sunny | 0 to 5 mph NE | 8% |
| Thursday Night | 63°F | Partly Cloudy | 0 mph | 5% |
| Friday | 87°F | Partly Sunny | 0 to 5 mph E | 9% |
Forecast source: National Weather Service (api.weather.gov) for Dewar (35.458, -95.949). Updated through the day.
Growing snapshot for Dewar
Last spring frost
Apr 8
First fall frost
Oct 28
Growing season
203 days
Hardiness zone
7b
More local growing data for Dewar: 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 Dewar). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.