Dewar, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Dewar, a town in Okmulgee County, Oklahoma.
Overnight
71°F
Clear
Clear, with a low around 71. South wind around 5 mph.
7-day forecast for Dewar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 71°F | Clear | 5 mph S | 0% |
| Tuesday | 101°F | Sunny | 5 mph SE | 0% |
| Tuesday Night | 75°F | Mostly Clear | 5 mph SE | 2% |
| Wednesday | 103°F | Sunny | 5 mph S | 4% |
| Wednesday Night | 77°F | Partly Cloudy | 5 mph S | 4% |
| Thursday | 101°F | Mostly Sunny | 5 mph S | 14% |
| Thursday Night | 75°F | Chance Showers And Thunderstorms | 5 mph S | 26% |
| Friday | 96°F | Chance Showers And Thunderstorms | 5 mph S | 32% |
| Friday Night | 74°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph S | 18% |
| Saturday | 96°F | Mostly Sunny | 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 | 75°F | Clear | 5 to 10 mph S | 1% |
| Monday | 97°F | Sunny | 5 to 10 mph S | 1% |
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 Aug 4, 2026.