Wynona, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Wynona, a town in Osage County, Oklahoma.
This Afternoon
65°F
Partly Sunny
Partly sunny. High near 65, with temperatures falling to around 59 in the afternoon. West wind around 15 mph, with gusts as high as 30 mph.
7-day forecast for Wynona
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 65°F | Partly Sunny | 15 mph W | 6% |
| Tonight | 46°F | Partly Cloudy | 5 to 15 mph NW | 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) for Wynona (36.546, -96.326). Updated through the day.
Growing snapshot for Wynona
Last spring frost
Mar 31
First fall frost
Oct 31
Growing season
212 days
Hardiness zone
7a
More local growing data for Wynona: nearby ZIP 74084 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Avant
Barnsdall
Bowring
Burbank
Fairfax
Foraker
Grainola
Hominy
McCord
Mule Barn
Nelagoney
Oak Grove
Pawhuska
Pershing
Prue
Ralston
Shidler
Skiatook
Sperry
Webb City
Westport
Climate data from the nearest NOAA station, Barnsdall, Ok (9.6 mi from Wynona). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.