Sulphur, LA Weather & Growing Conditions
This Afternoon
74°F
Sunny
Sunny. High near 74, with temperatures falling to around 70 in the afternoon. North wind 0 to 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Sunny | 0 to 5 mph N | 0% |
| Tonight | 50°F | Clear | 0 mph | 0% |
| Thursday | 77°F | Sunny | 0 mph | 1% |
| Thursday Night | 56°F | Partly Cloudy | 0 mph | 5% |
| Friday | 79°F | Sunny | 0 to 5 mph N | 2% |
| Friday Night | 53°F | Partly Cloudy | 0 to 5 mph NE | 3% |
| Saturday | 72°F | Mostly Sunny | 5 mph NE | 0% |
| Saturday Night | 48°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph NE | 15% |
| Sunday | 66°F | Mostly Sunny | 5 mph N | 9% |
| Sunday Night | 44°F | Mostly Clear | 0 mph | 5% |
| Monday | 68°F | Mostly Sunny | 0 to 5 mph N | 6% |
| Monday Night | 44°F | Mostly Clear | 0 mph | 2% |
| Tuesday | 72°F | Sunny | 0 mph | 2% |
| Tuesday Night | 47°F | Partly Cloudy | 0 mph | 1% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sulphur, LA
Last spring frost
Mar 2
First fall frost
Nov 25
Growing season
267 days
Hardiness zone
9a
Explore more for Sulphur, LA: full frost dates · planting calendar · Louisiana frost dates
Climate data from the nearest NOAA station, Moss Bluff 2 Nnw, La (12.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.