Port Sulphur, LA Weather & Growing Conditions
Overnight
76°F
Clear
Clear, with a low around 76. Northeast wind around 0 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 76°F | Clear | 0 mph | 0% |
| Saturday | 90°F | Sunny | 0 to 10 mph NE | 3% |
| Saturday Night | 77°F | Mostly Clear | 0 to 5 mph SE | 2% |
| Sunday | 90°F | Sunny | 0 to 5 mph E | 3% |
| Sunday Night | 77°F | Mostly Clear | 0 to 5 mph S | 2% |
| Monday | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph NE | 32% |
| Monday Night | 76°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph E | 17% |
| Tuesday | 90°F | Sunny | 0 to 5 mph NE | 10% |
| Tuesday Night | 76°F | Mostly Clear | 0 to 5 mph NE | 10% |
| Wednesday | 89°F | Sunny | 5 to 10 mph NE | 12% |
| Wednesday Night | 75°F | Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 16% |
| Thursday | 88°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph NE | 16% |
| Thursday Night | 74°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 5 to 10 mph E | 16% |
| Friday | 87°F | Sunny | 10 to 15 mph NE | 10% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port Sulphur, LA
Last spring frost
Feb 3
First fall frost
Dec 28
Growing season
327 days
Hardiness zone
9b
Explore more for Port Sulphur, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, Lsu Citrus Rsch Stn, La (5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.