Wynona, OK Weather & Growing Conditions
This Afternoon
66°F
Mostly Cloudy
Mostly cloudy. High near 66, with temperatures falling to around 59 in the afternoon. Northwest wind around 15 mph, with gusts as high as 30 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 66°F | Mostly Cloudy | 15 mph NW | 5% |
| Tonight | 46°F | Partly Cloudy | 5 to 15 mph W | 1% |
| Wednesday | 66°F | Sunny | 5 to 10 mph W | 0% |
| Wednesday Night | 45°F | Clear | 0 mph | 0% |
| Thursday | 60°F | Rain Showers | 0 to 5 mph N | 80% |
| Thursday Night | 41°F | Slight Chance Rain Showers then Mostly Clear | 5 mph N | 15% |
| Friday | 60°F | Mostly Sunny | 5 mph N | 0% |
| Friday Night | 41°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 61°F | Mostly Sunny | 0 to 5 mph N | 2% |
| Saturday Night | 41°F | Mostly Clear | 0 to 5 mph W | 5% |
| Sunday | 66°F | Sunny | 5 mph W | 2% |
| Sunday Night | 42°F | Clear | 0 to 5 mph SW | 0% |
| Monday | 69°F | Sunny | 5 to 10 mph SW | 0% |
| Monday Night | 46°F | Mostly Clear | 5 mph S | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Wynona, OK
Last spring frost
Mar 31
First fall frost
Oct 31
Growing season
212 days
Hardiness zone
7a
Explore more for Wynona, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Barnsdall, Ok (9.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.