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.
Overnight
68°F
Areas Of Fog
Areas of fog before 5am, then areas of fog and a slight chance of rain showers. Mostly cloudy, with a low around 68. Southwest wind around 0 mph. Chance of precipitation is 20%.
7-day forecast for Bayou Vista
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 68°F | Areas Of Fog | 0 mph | 20% |
| Wednesday | 79°F | Patchy Fog then Mostly Sunny | 5 mph NW | 21% |
| Wednesday Night | 57°F | Mostly Clear | 0 mph | 0% |
| Thursday | 80°F | Sunny | 0 to 5 mph NW | 0% |
| Thursday Night | 60°F | Partly Cloudy | 0 mph | 9% |
| Friday | 79°F | Partly Sunny | 0 to 5 mph N | 9% |
| Friday Night | 56°F | Mostly Clear | 0 to 5 mph N | 2% |
| Saturday | 75°F | Mostly Sunny | 5 to 10 mph NE | 1% |
| Saturday Night | 51°F | Partly Cloudy then Slight Chance Rain Showers | 5 mph N | 15% |
| Sunday | 68°F | Slight Chance Rain Showers | 5 to 10 mph N | 15% |
| Sunday Night | 47°F | Slight Chance Rain Showers then Partly Cloudy | 0 to 5 mph N | 15% |
| Monday | 70°F | Sunny | 5 mph N | 5% |
| Monday Night | 47°F | Mostly Clear | 0 mph | 4% |
| Tuesday | 73°F | Sunny | 0 to 5 mph N | 4% |
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 Nov 4, 2026.