Cecilia, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cecilia, a community in St. Martin County, Louisiana.
Today
94°F
Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Heat index values as high as 99. Northwest wind 0 to 5 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Cecilia
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NW | 25% |
| Tonight | 75°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 15 mph SW | 26% |
| Wednesday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SW | 16% |
| Wednesday Night | 75°F | Mostly Clear | 0 to 5 mph S | 6% |
| Thursday | 95°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph S | 34% |
| Thursday Night | 74°F | Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph SE | 34% |
| Friday | 95°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph SE | 23% |
| Friday Night | 74°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph E | 23% |
| Saturday | 94°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph E | 28% |
| Saturday Night | 74°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph E | 28% |
| Sunday | 94°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 5 mph SE | 53% |
| Sunday Night | 74°F | Chance Showers And Thunderstorms | 0 to 5 mph SE | 53% |
| Monday | 93°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 59% |
| Monday Night | 75°F | Showers And Thunderstorms Likely | 0 to 5 mph S | 59% |
Forecast source: National Weather Service (api.weather.gov) for Cecilia (30.336, -91.848). Updated through the day.
Growing snapshot for Cecilia
Last spring frost
Feb 13
First fall frost
Dec 4
Growing season
299 days
Hardiness zone
9a
More local growing data for Cecilia: nearby ZIP 70517 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lafayette Rgnl Ap, La (13.4 mi from Cecilia). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.