Ossun, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ossun, a community in Lafayette County, Louisiana.
Tonight
63°F
Patchy Fog
Patchy fog and showers and thunderstorms likely before 4am. Mostly cloudy, with a low around 63. West wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Ossun
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 63°F | Patchy Fog | 5 mph W | 69% |
| Wednesday | 75°F | Mostly Sunny | 0 to 10 mph N | 5% |
| Wednesday Night | 51°F | Mostly Clear | 0 mph | 0% |
| Thursday | 77°F | Sunny | 0 mph | 0% |
| Thursday Night | 55°F | Partly Cloudy | 0 mph | 5% |
| Friday | 79°F | Sunny | 0 to 10 mph N | 2% |
| Friday Night | 53°F | Mostly Clear | 5 to 10 mph NE | 1% |
| Saturday | 73°F | Mostly Sunny | 10 mph NE | 1% |
| Saturday Night | 47°F | Partly Cloudy | 5 to 10 mph N | 4% |
| Sunday | 66°F | Mostly Sunny | 5 to 10 mph N | 7% |
| Sunday Night | 43°F | Mostly Clear | 5 mph N | 4% |
| Monday | 69°F | Sunny | 5 mph N | 3% |
| Monday Night | 43°F | Mostly Clear | 0 mph | 2% |
| Tuesday | 73°F | Sunny | 0 to 5 mph N | 3% |
Forecast source: National Weather Service (api.weather.gov) for Ossun (30.283, -92.107). Updated through the day.
Growing snapshot for Ossun
Last spring frost
Feb 26
First fall frost
Nov 28
Growing season
279 days
Hardiness zone
9a
More local growing data for Ossun: nearby ZIP 70583 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lafayette, La (4.6 mi from Ossun). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.