Port Lavaca, TX Weather & Growing Conditions
Overnight
63°F
Clear
Clear, with a low around 63. North wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Clear | 10 mph N | 0% |
| Wednesday | 72°F | Sunny | 6 to 10 mph NNE | 0% |
| Wednesday Night | 65°F | Clear | 2 to 6 mph E | 0% |
| Thursday | 73°F | Sunny then Slight Chance Rain Showers | 9 mph E | 15% |
| Thursday Night | 65°F | Slight Chance Showers And Thunderstorms | 3 to 9 mph NE | 23% |
| Friday | 73°F | Mostly Sunny | 8 to 15 mph N | 5% |
| Friday Night | 62°F | Partly Cloudy | 8 to 14 mph NNE | 0% |
| Saturday | 70°F | Partly Sunny | 14 mph NNE | 7% |
| Saturday Night | 59°F | Chance Rain Showers | 12 to 17 mph NNE | 26% |
| Sunday | 65°F | Slight Chance Rain Showers | 10 to 17 mph NNE | 23% |
| Sunday Night | 56°F | Partly Cloudy | 6 to 9 mph NNE | 11% |
| Monday | 66°F | Mostly Sunny | 6 to 9 mph NE | 8% |
| Monday Night | 58°F | Partly Cloudy | 6 mph ENE | 1% |
| Tuesday | 69°F | Mostly Sunny | 7 mph ENE | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Port Lavaca, TX
Last spring frost
Feb 1
First fall frost
Dec 21
Growing season
321 days
Hardiness zone
9b
Explore more for Port Lavaca, TX: full frost dates · planting calendar · Texas frost dates
Climate data from the nearest NOAA station, Pt Comfort, Tx (5.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.