Port Vincent, LA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Port Vincent, a village in Livingston County, Louisiana.
Today
80°F
Patchy Fog then Mostly Sunny
Patchy fog and a slight chance of rain showers before 9am. Mostly sunny. High near 80, with temperatures falling to around 76 in the afternoon. Northwest wind 0 to 5 mph. Chance of precipitation is 20%.
7-day forecast for Port Vincent
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Patchy Fog then Mostly Sunny | 0 to 5 mph NW | 24% |
| Tonight | 54°F | Mostly Clear | 0 to 5 mph N | 0% |
| Thursday | 81°F | Sunny | 0 to 5 mph N | 0% |
| Thursday Night | 59°F | Partly Cloudy | 0 mph | 4% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph N | 3% |
| Friday Night | 54°F | Mostly Clear | 5 mph N | 0% |
| Saturday | 75°F | Mostly Sunny | 5 mph N | 1% |
| Saturday Night | 49°F | Partly Cloudy | 5 mph N | 2% |
| Sunday | 69°F | Slight Chance Rain Showers | 5 mph N | 15% |
| Sunday Night | 45°F | Slight Chance Rain Showers then Partly Cloudy | 5 mph N | 15% |
| Monday | 71°F | Sunny | 0 to 5 mph N | 5% |
| Monday Night | 45°F | Mostly Clear | 0 mph | 4% |
| Tuesday | 74°F | Sunny | 0 to 5 mph NE | 4% |
| Tuesday Night | 47°F | Partly Cloudy | 0 mph | 3% |
Forecast source: National Weather Service (api.weather.gov) for Port Vincent (30.336, -90.844). Updated through the day.
Growing snapshot for Port Vincent
Last spring frost
Feb 21
First fall frost
Dec 5
Growing season
291 days
Hardiness zone
9a
More local growing data for Port Vincent: nearby ZIP 70733 weather · frost dates · planting calendar · Louisiana frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Donaldsonville 4 Sw, La (20.3 mi from Port Vincent). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.