Sulphur, OK Weather & Growing Conditions
Overnight
72°F
Partly Cloudy
Partly cloudy, with a low around 72. South wind around 6 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 72°F | Partly Cloudy | 6 mph S | 0% |
| Saturday | 98°F | Sunny | 6 to 9 mph S | 0% |
| Saturday Night | 74°F | Mostly Clear | 6 to 9 mph S | 0% |
| Sunday | 97°F | Showers And Thunderstorms Likely | 6 to 9 mph S | 59% |
| Sunday Night | 67°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 6 mph ESE | 59% |
| Monday | 89°F | Chance Showers And Thunderstorms | 2 to 7 mph NE | 48% |
| Monday Night | 64°F | Partly Cloudy | 7 mph NNE | 10% |
| Tuesday | 84°F | Mostly Sunny | 9 mph NNE | 14% |
| Tuesday Night | 61°F | Slight Chance Rain Showers | 7 mph NE | 15% |
| Wednesday | 86°F | Mostly Sunny | 6 mph ENE | 10% |
| Wednesday Night | 62°F | Partly Cloudy | 5 mph ENE | 7% |
| Thursday | 87°F | Mostly Sunny | 3 mph SE | 6% |
| Thursday Night | 64°F | Partly Cloudy | 3 mph E | 5% |
| Friday | 88°F | Partly Sunny | 3 mph ESE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sulphur, OK
Last spring frost
Apr 4
First fall frost
Oct 31
Growing season
208 days
Hardiness zone
7b
Explore more for Sulphur, OK: full frost dates · planting calendar · Oklahoma frost dates
Climate data from the nearest NOAA station, Chickasaw Nra, Ok (0.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.