May, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for May, a town in Ellis County, Oklahoma.
This Afternoon
100°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 100. Heat index values as high as 99. Southwest wind around 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for May
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 100°F | Slight Chance Showers And Thunderstorms | 16 mph SW | 17% |
| Tonight | 68°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 7 to 15 mph SSW | 33% |
| Sunday | 87°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 7 to 10 mph N | 29% |
| Sunday Night | 62°F | Slight Chance Showers And Thunderstorms | 6 to 10 mph NNE | 19% |
| Monday | 81°F | Slight Chance Rain Showers then Partly Sunny | 6 to 9 mph NE | 19% |
| Monday Night | 59°F | Partly Cloudy | 5 to 8 mph E | 14% |
| Tuesday | 78°F | Partly Sunny | 5 to 8 mph E | 14% |
| Tuesday Night | 57°F | Mostly Cloudy | 6 to 9 mph ESE | 7% |
| Wednesday | 81°F | Partly Sunny then Slight Chance Rain Showers | 5 to 8 mph SE | 20% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms | 8 mph SE | 41% |
| Thursday | 86°F | Chance Showers And Thunderstorms | 6 to 9 mph SSE | 41% |
| Thursday Night | 64°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 7 mph SSE | 44% |
| Friday | 86°F | Chance Rain Showers | 8 mph SSE | 44% |
| Friday Night | 65°F | Chance Showers And Thunderstorms | 7 mph SSE | 31% |
Forecast source: National Weather Service (api.weather.gov) for May (36.617, -99.749). Updated through the day.
Growing snapshot for May
Last spring frost
Apr 21
First fall frost
Oct 19
Growing season
179 days
Hardiness zone
7a
More local growing data for May: nearby ZIP 73851 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Ft Supply 3Se, Ok (13.8 mi from May). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.