


NWS Forecast for: Port Isabel TX Issued by: National Weather Service Brownsville, TX Last Update: 6:00 pm CDT Jun 19, 2025 | ![]() |
Tonight: Showers and thunderstorms likely, mainly before 3am. Mostly cloudy, with a low around 79. Southeast wind 10 to 13 mph. Chance of precipitation is 60%. Friday: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 9am, then a chance of showers and thunderstorms after 9am. Partly sunny, with a high near 85. Southeast wind 10 to 15 mph. Chance of precipitation is 60%. Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 79. Southeast wind 11 to 14 mph. Saturday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Southeast wind 11 to 16 mph, with gusts as high as 21 mph. Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 79. Southeast wind 11 to 14 mph. Chance of precipitation is 20%. Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 86. Southeast wind 10 to 15 mph. Chance of precipitation is 30%. Sunday Night: A slight chance of showers, with thunderstorms also possible after 1am. Mostly clear, with a low around 79. Southeast wind 10 to 14 mph. Chance of precipitation is 20%. Monday: A 40 percent chance of showers and thunderstorms. Sunny, with a high near 86. Southeast wind 9 to 14 mph. Monday Night: A slight chance of showers, with thunderstorms also possible after 1am. Mostly clear, with a low around 78. Southeast wind 7 to 13 mph. Chance of precipitation is 20%. Tuesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. East southeast wind 6 to 13 mph. Tuesday Night: A 30 percent chance of showers. Partly cloudy, with a low around 79. Southeast wind 6 to 10 mph. Wednesday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86. Wednesday Night: A 30 percent chance of showers. Partly cloudy, with a low around 79. Thursday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. | |
Port Isabel TX 26.08°N 97.21°W | |
Visit your local NWS office at: https://www.weather.gov/bro |