St. Martinville, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for St. Martinville, a city in St. Martin County, Louisiana.
This Afternoon
95°F
Sunny
Sunny, with a high near 95. Heat index values as high as 103. East wind 5 to 10 mph.
7-day forecast for St. Martinville
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 95°F | Sunny | 5 to 10 mph E | 1% |
| Tonight | 73°F | Clear | 0 to 5 mph S | 1% |
| Sunday | 96°F | Sunny | 0 to 5 mph E | 4% |
| Sunday Night | 75°F | Mostly Clear | 0 to 5 mph SW | 3% |
| Monday | 96°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph N | 17% |
| Monday Night | 75°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph E | 17% |
| Tuesday | 97°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 16% |
| Tuesday Night | 74°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph E | 16% |
| Wednesday | 96°F | Sunny | 0 to 10 mph NE | 6% |
| Wednesday Night | 73°F | Mostly Clear | 5 mph NE | 6% |
| Thursday | 94°F | Sunny | 5 to 10 mph NE | 4% |
| Thursday Night | 70°F | Mostly Clear | 5 to 10 mph NE | 4% |
| Friday | 93°F | Sunny | 10 mph NE | 4% |
| Friday Night | 70°F | Mostly Clear | 5 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for St. Martinville (30.127, -91.831). Updated through the day.
Growing snapshot for St. Martinville
Last spring frost
Feb 19
First fall frost
Dec 1
Growing season
289 days
Hardiness zone
9a
More local growing data for St. Martinville: nearby ZIP 70582 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Lafayette 13 Se, La (7.7 mi from St. Martinville). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.