Ossun, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Ossun, a community in Lafayette County, Louisiana.
Today
94°F
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Heat index values as high as 100. Northwest wind 0 to 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Ossun
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph NW | 21% |
| Tonight | 76°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 10 mph SW | 22% |
| Wednesday | 95°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SW | 26% |
| Wednesday Night | 75°F | Mostly Clear | 0 to 5 mph S | 6% |
| Thursday | 94°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 38% |
| Thursday Night | 75°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph S | 38% |
| Friday | 94°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SE | 27% |
| Friday Night | 74°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 27% |
| Saturday | 94°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph E | 30% |
| Saturday Night | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SE | 30% |
| Sunday | 93°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 55% |
| Sunday Night | 75°F | Showers And Thunderstorms Likely | 0 to 5 mph E | 55% |
| Monday | 92°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 62% |
| Monday Night | 75°F | Showers And Thunderstorms Likely | 0 to 5 mph W | 62% |
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 Aug 4, 2026.