Sulphur, OK Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sulphur, a city in Murray County, Oklahoma.
Tonight
72°F
Mostly Clear
Mostly clear, with a low around 72. South wind around 6 mph.
7-day forecast for Sulphur
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 72°F | Mostly Clear | 6 mph S | 0% |
| Saturday | 98°F | Sunny | 6 to 9 mph S | 0% |
| Saturday Night | 73°F | Mostly Clear | 6 to 9 mph S | 8% |
| Sunday | 97°F | Partly Sunny then Chance Showers And Thunderstorms | 8 mph S | 46% |
| Sunday Night | 67°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 6 mph SE | 65% |
| Monday | 91°F | Rain Showers Likely | 2 to 6 mph NNE | 64% |
| Monday Night | 65°F | Mostly Clear | 6 mph NNE | 11% |
| Tuesday | 86°F | Mostly Sunny | 8 mph NNE | 11% |
| Tuesday Night | 63°F | Partly Cloudy | 7 mph NE | 3% |
| Wednesday | 88°F | Mostly Sunny | 6 mph ENE | 10% |
| Wednesday Night | 64°F | Partly Cloudy | 5 mph ENE | 6% |
| Thursday | 89°F | Slight Chance Rain Showers | 3 mph E | 16% |
| Thursday Night | 65°F | Partly Cloudy | 3 mph ENE | 8% |
| Friday | 88°F | Partly Sunny | 5 mph E | 7% |
Forecast source: National Weather Service (api.weather.gov) for Sulphur (34.502, -96.985). Updated through the day.
Growing snapshot for Sulphur
Last spring frost
Apr 4
First fall frost
Oct 31
Growing season
208 days
Hardiness zone
7b
More local growing data for Sulphur: nearby ZIP 73086 weather · frost dates · planting calendar · Oklahoma frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Chickasaw Nra, Ok (0.8 mi from Sulphur). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.