Bayou Vista, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bayou Vista, a community in St. Mary County, Louisiana.
Today
92°F
Sunny
Sunny, with a high near 92. Heat index values as high as 101. East wind 0 to 5 mph.
7-day forecast for Bayou Vista
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Sunny | 0 to 5 mph E | 2% |
| Tonight | 74°F | Mostly Clear | 0 to 5 mph SE | 2% |
| Sunday | 93°F | Sunny | 0 to 5 mph E | 10% |
| Sunday Night | 76°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph S | 17% |
| Monday | 93°F | Sunny then Chance Showers And Thunderstorms | 0 to 5 mph NE | 35% |
| Monday Night | 75°F | Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 35% |
| Tuesday | 93°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 23% |
| Tuesday Night | 75°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 mph | 23% |
| Wednesday | 93°F | Sunny then Slight Chance Showers And Thunderstorms | 0 to 5 mph NE | 19% |
| Wednesday Night | 74°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph E | 19% |
| Thursday | 91°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph NE | 15% |
| Thursday Night | 72°F | Slight Chance Showers And Thunderstorms then Mostly Clear | 0 to 5 mph NE | 15% |
| Friday | 90°F | Sunny | 5 to 10 mph NE | 7% |
| Friday Night | 71°F | Partly Cloudy | 0 to 5 mph NE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Bayou Vista (29.691, -91.267). Updated through the day.
Growing snapshot for Bayou Vista
Last spring frost
Jan 30
First fall frost
Jan 1
Growing season
335 days
Hardiness zone
9b
More local growing data for Bayou Vista: nearby ZIP 70342 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Morgan City, La (3.8 mi from Bayou Vista). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.