| NWS Forecast for: Port Lavaca TX Issued by: National Weather Service Corpus Christi, TX Last Update: 11:46 pm CDT Jul 20, 2026 |  |
| Tonight: Mostly clear, with a low around 75. Southwest wind around 7 mph. Tuesday: Sunny, with a high near 96. Heat index values as high as 109. Light and variable wind becoming southeast 5 to 8 mph in the morning. Tuesday Night: Mostly clear, with a low around 76. South wind 7 to 10 mph. Wednesday: Mostly sunny and hot, with a high near 98. Heat index values as high as 111. West southwest wind 5 to 9 mph becoming south southeast in the afternoon. Wednesday Night: Mostly clear, with a low around 79. South wind 6 to 10 mph. Thursday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 95. West southwest wind 5 to 10 mph becoming south southeast in the afternoon. Thursday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 79. South wind 5 to 10 mph. Friday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 92. South wind 5 to 11 mph. Friday Night: Mostly clear, with a low around 80. South southeast wind 7 to 11 mph. Saturday: Sunny, with a high near 91. Saturday Night: Mostly clear, with a low around 80. Sunday: Mostly sunny, with a high near 91. Sunday Night: Mostly clear, with a low around 80. Monday: Sunny, with a high near 91. | |
| Port Lavaca TX 28.62°N 96.64°W | |
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