Opelousas, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Opelousas, a city in St. Landry County, Louisiana.
Tonight
70°F
Clear
Clear, with a low around 70. East wind around 0 mph.
7-day forecast for Opelousas
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Clear | 0 mph | 0% |
| Saturday | 96°F | Sunny | 0 to 5 mph E | 1% |
| Saturday Night | 72°F | Clear | 0 to 5 mph S | 1% |
| Sunday | 96°F | Sunny | 0 to 5 mph E | 4% |
| Sunday Night | 74°F | Mostly Clear | 0 mph | 4% |
| Monday | 97°F | Sunny | 0 to 5 mph N | 13% |
| Monday Night | 74°F | Partly Cloudy | 0 mph | 13% |
| Tuesday | 98°F | Sunny | 0 to 5 mph NE | 10% |
| Tuesday Night | 74°F | Mostly Clear | 0 to 5 mph NE | 10% |
| Wednesday | 96°F | Sunny | 0 to 10 mph NE | 4% |
| Wednesday Night | 72°F | Mostly Clear | 0 to 5 mph NE | 4% |
| Thursday | 94°F | Sunny | 5 to 10 mph NE | 3% |
| Thursday Night | 70°F | Mostly Clear | 5 mph NE | 3% |
| Friday | 92°F | Sunny | 5 to 10 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Opelousas (30.525, -92.082). Updated through the day.
Growing snapshot for Opelousas
Last spring frost
Feb 28
First fall frost
Nov 23
Growing season
267 days
Hardiness zone
9a
More local growing data for Opelousas: nearby ZIP 70570 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Arnaudville
Cankton
Grand Coteau
Krotz Springs
Lawtell
Lebeau
Leonville
Melville
Morrow
Palmetto
Port Barre
Sunset
Washington
Climate data from the nearest NOAA station, Grand Coteau, La (8.7 mi from Opelousas). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.