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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:E wind around 16 kt. Sunny. Seas 1 ft or less.

      High: 86 °F

      E 16kt
      < 1ft

    • Tonight

      Tonight:ESE wind 11 to 15 kt. A chance of showers and thunderstorms, mainly after 5am.   Seas 1 ft or less.

      Low: 82 °F

      ESE 15kt
      < 1ft

    • Saturday

      Saturday:ESE wind 10 to 17 kt. Showers likely, with thunderstorms also possible after 10am.   Seas 1 ft or less.

      High: 85 °F

      ESE 17kt
      < 1ft

    • Saturday Night

      Saturday Night:ESE wind 12 to 17 kt. A chance of showers and thunderstorms, mainly after 3am.   Seas 1 ft or less.

      Low: 82 °F

      ESE 17kt
      < 1ft

    • Sunday

      Sunday:SE wind 11 to 16 kt. A chance of showers and thunderstorms, mainly before 1pm.   Seas 1 ft or less.

      High: 86 °F

      SE 16kt
      < 1ft

    • Sunday Night

      Sunday Night:SE wind 12 to 15 kt. Showers likely and possibly a thunderstorm after 1am.   Seas 1 ft or less.

      Low: 82 °F

      SE 15kt
      < 1ft

    • Monday

      Monday:SSE wind 11 to 14 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm.   Seas 1 ft or less.

      High: 85 °F

      SSE 14kt
      < 1ft

    • Monday Night

      Monday Night:SE wind around 12 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am.   Seas 1 ft or less.

      Low: 81 °F

      SE 12kt
      < 1ft

    • Tuesday

      Tuesday:SSE wind 10 to 12 kt. Showers likely and possibly a thunderstorm.   Seas 1 ft or less.

      High: 84 °F

      SSE 12kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:00 pm CDT Jun 12, 2026
Forecast Valid: 3pm CDT Jun 12, 2026-6pm CDT Jun 18, 2026

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Detailed Forecast


This Afternoon
E wind around 16 kt. Sunny. Seas 1 ft or less.
Tonight
ESE wind 11 to 15 kt. A chance of showers and thunderstorms, mainly after 5am. Seas 1 ft or less.
Saturday
ESE wind 10 to 17 kt. Showers likely, with thunderstorms also possible after 10am. Seas 1 ft or less.
Saturday Night
ESE wind 12 to 17 kt. A chance of showers and thunderstorms, mainly after 3am. Seas 1 ft or less.
Sunday
SE wind 11 to 16 kt. A chance of showers and thunderstorms, mainly before 1pm. Seas 1 ft or less.
Sunday Night
SE wind 12 to 15 kt. Showers likely and possibly a thunderstorm after 1am. Seas 1 ft or less.
Monday
SSE wind 11 to 14 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Seas 1 ft or less.
Monday Night
SE wind around 12 kt. A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Seas 1 ft or less.
Tuesday
SSE wind 10 to 12 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

Winds and waves higher in and near thunderstorms.

*Notices:

  1. This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
  2. The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.
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ABOUT THIS FORECAST

Point Forecast: 26.15°N 97.29°W
Last Update: 3:00 pm CDT Jun 12, 2026
Forecast Valid: 3pm CDT Jun 12, 2026-6pm CDT Jun 18, 2026
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