Cecilia, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cecilia, a community in St. Martin County, Louisiana.
This Afternoon
83°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 3pm, then a chance of showers and thunderstorms between 3pm and 4pm, then a slight chance of showers and thunderstorms. Partly sunny. High near 83, with temperatures falling to around 77 in the afternoon. South wind 10 to 15 mph, with gusts as high as 20 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 |
|---|---|---|---|---|
| This Afternoon | 83°F | Slight Chance Showers And Thunderstorms | 10 to 15 mph S | 26% |
| Tonight | 63°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 5 to 10 mph NW | 49% |
| Wednesday | 76°F | Mostly Sunny | 5 to 10 mph NW | 8% |
| Wednesday Night | 52°F | Mostly Clear | 0 to 5 mph N | 1% |
| Thursday | 79°F | Sunny | 0 mph | 5% |
| Thursday Night | 57°F | Chance Rain Showers | 0 mph | 28% |
| Friday | 79°F | Mostly Sunny | 0 to 10 mph N | 9% |
| Friday Night | 52°F | Mostly Clear | 5 mph N | 2% |
| Saturday | 74°F | Mostly Sunny | 5 to 10 mph N | 4% |
| Saturday Night | 46°F | Partly Cloudy | 5 to 10 mph N | 11% |
| Sunday | 69°F | Mostly Sunny | 5 to 15 mph N | 6% |
| Sunday Night | 43°F | Mostly Clear | 5 mph N | 3% |
| Monday | 71°F | Sunny | 5 to 10 mph N | 4% |
| Monday Night | 43°F | Mostly Clear | 0 to 5 mph N | 3% |
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 Nov 3, 2026.