Opelousas, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Opelousas, a city in St. Landry County, Louisiana.
This Afternoon
95°F
Sunny
Sunny, with a high near 95. Heat index values as high as 101. East wind around 5 mph.
7-day forecast for Opelousas
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 95°F | Sunny | 5 mph E | 1% |
| Tonight | 72°F | Clear | 0 to 5 mph S | 1% |
| Sunday | 96°F | Sunny | 0 to 5 mph SE | 3% |
| Sunday Night | 73°F | Mostly Clear | 0 to 5 mph SW | 0% |
| Monday | 96°F | Sunny | 0 to 5 mph N | 7% |
| Monday Night | 74°F | Mostly Clear | 0 mph | 7% |
| Tuesday | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 19% |
| Tuesday Night | 73°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph NE | 19% |
| Wednesday | 96°F | Sunny | 0 to 10 mph NE | 3% |
| Wednesday Night | 71°F | Mostly Clear | 5 mph NE | 3% |
| Thursday | 94°F | Sunny | 5 to 10 mph NE | 1% |
| Thursday Night | 69°F | Mostly Clear | 5 mph NE | 1% |
| Friday | 92°F | Sunny | 5 to 10 mph NE | 2% |
| Friday Night | 68°F | Mostly Clear | 0 to 5 mph NE | 2% |
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.