Port Lavaca, TX

Current conditions, hourly and 7-day forecast, and live radar for Port Lavaca, TX 77979. Right now: mostly clear then slight chance showers and thunderstorms, 77°F. Data from the National Weather Service.

• Tonight: A slight chance of showers and thunderstorms between 1am and 3am, then a chance of showers and thunderstorms between 3am and 4am, then a chance of showers and thunderstorms. Mostly clear, with a low around 77. Heat index values as high as 93. South southeast wind 1 to 7 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
• Thursday: A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 8am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 93. Heat index values as high as 108. Southeast wind 1 to 9 mph. Chance of precipitation is 40%. New rainfall amounts between a quarter and half of an inch possible.
• Thursday Night: Mostly clear, with a low around 78. Heat index values as high as 103. South southeast wind 2 to 9 mph. New rainfall amounts less than a tenth of an inch possible.
• Friday: A chance of showers and thunderstorms before 10am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 94. Heat index values as high as 110. South wind 2 to 12 mph. Chance of precipitation is 40%.
• Friday Night: A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 79. South southeast wind 7 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
• Saturday: Mostly sunny, with a high near 94. South wind 7 to 14 mph, with gusts as high as 20 mph.