Sulphur, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sulphur, a city in Calcasieu County, Louisiana.
Overnight
60°F
Patchy Fog
Patchy fog. Partly cloudy, with a low around 60. North wind around 5 mph.
7-day forecast for Sulphur
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 60°F | Patchy Fog | 5 mph N | 0% |
| Wednesday | 75°F | Patchy Fog then Sunny | 0 to 5 mph N | 0% |
| Wednesday Night | 53°F | Clear | 0 mph | 0% |
| Thursday | 78°F | Sunny | 0 mph | 1% |
| Thursday Night | 58°F | Partly Cloudy | 0 mph | 6% |
| Friday | 80°F | Sunny | 0 to 5 mph N | 2% |
| Friday Night | 56°F | Partly Cloudy | 5 mph NE | 3% |
| Saturday | 73°F | Mostly Sunny | 5 to 10 mph NE | 0% |
| Saturday Night | 50°F | Mostly Cloudy then Slight Chance Rain Showers | 5 mph NE | 15% |
| Sunday | 67°F | Mostly Sunny | 5 mph N | 9% |
| Sunday Night | 47°F | Mostly Clear | 0 to 5 mph N | 5% |
| Monday | 69°F | Mostly Sunny | 0 to 5 mph N | 6% |
| Monday Night | 47°F | Mostly Clear | 0 mph | 2% |
| Tuesday | 72°F | Sunny | 0 mph | 2% |
Forecast source: National Weather Service (api.weather.gov) for Sulphur (30.230, -93.356). Updated through the day.
Growing snapshot for Sulphur
Last spring frost
Mar 2
First fall frost
Nov 25
Growing season
267 days
Hardiness zone
9a
More local growing data for Sulphur: nearby ZIP 70663 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Moss Bluff 2 Nnw, La (12.1 mi from Sulphur). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.