Weather in Port Lavaca, TX
Updated 2026-08-11 11:15 local time · ZIP codes 77979
Partly cloudy
No government weather alerts were returned for this location at the latest update.
Next hours
90°11% rain
93°4% rain95°3% rain94°4% rain94°3% rain93°5% rain94°3% rain92°3% rain89°4% rain86°6% rain
84°9% rain84°9% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 11%).
It feels like 101°F with winds near 13 mph.
86°F, 6% rain chance and 14 mph wind.
Visibility is around 10 mi; gusts may reach 21 mph.
Current temperature is 90°F, wind 13 mph, rain chance up to 11%.
UV index is 7. Sunscreen, shade and protective clothing are recommended.
Port Lavaca weather today
Partly cloudy and 90°F in Port Lavaca, TX. Today's high is 95°F with a 7% rain chance. Winds are around 13 mph with gusts near 15 mph. Relative humidity is 71%, pressure is 30.07 inHg, and visibility is about 10 miles.
Tonight and tomorrow in Port Lavaca
Sunrise is at 06:53 AM and sunset is at 08:09 PM. Tomorrow's forecast calls for Sunny with a high near 93°F and a low near 81°F. The maximum rain chance is 9%.