| NWS Forecast for: Port Isabel TX Issued by: National Weather Service Brownsville, TX Last Update: 5:30 pm CDT Jun 13, 2026 | |
| This Afternoon: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 89. Breezy, with an east wind around 18 mph. Chance of precipitation is 60%. Tonight: Showers and thunderstorms likely, mainly before midnight, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 82. Breezy, with a southeast wind 13 to 18 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible. Sunday: Showers and thunderstorms likely, mainly before 2pm. Partly sunny, with a high near 89. South southeast wind 13 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible. Sunday Night: A chance of showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 81. Southeast wind 13 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Monday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 88. South southeast wind 13 to 15 mph. Chance of precipitation is 60%. Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 81. Southeast wind 11 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 87. South southeast wind around 16 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Tuesday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 80. Southeast wind 14 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. Wednesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 89. Breezy, with a south wind around 18 mph. Chance of precipitation is 60%. Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 83. Breezy, with a south southeast wind 17 to 22 mph. Thursday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Breezy, with a south wind 22 to 24 mph. Thursday Night: Partly cloudy, with a low around 84. Breezy. Juneteenth: Mostly sunny, with a high near 92. Breezy. Friday Night: Partly cloudy, with a low around 84. Breezy. Saturday: Mostly sunny, with a high near 91. | |
| Port Isabel TX 26.06°N 97.21°W | |
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