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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Thursday

      Thursday:E wind 5 to 11 kt. A slight chance of showers and thunderstorms before 10am.   Seas around 1 ft.

      High: 83 °F

      E 11kt
      1ft

    • Thursday Night

      Thursday Night:E wind 8 to 11 kt becoming SSE after midnight. Increasing clouds. Seas 1 to 2 ft.

      Low: 82 °F

      E 11kt
      1-2ft

    • Friday

      Friday:SSE wind 6 to 12 kt becoming ESE in the morning. Partly sunny. Seas 1 to 2 ft.

      High: 83 °F

      ESE 12kt
      1-2ft

    • Friday Night

      Friday Night:ESE wind around 11 kt. A slight chance of showers after 1am.   Seas 2 to 3 ft.

      Low: 81 °F

      ESE 11kt
      2-3ft

    • Saturday

      Saturday:SE wind 9 to 14 kt. A slight chance of showers, with thunderstorms also possible after 10am.   Seas around 2 ft.

      High: 84 °F

      SE 14kt
      2ft

    • Saturday Night

      Saturday Night:SE wind 13 to 15 kt. A slight chance of showers and thunderstorms after 1am.   Seas 2 to 3 ft.

      Low: 82 °F

      SE 15kt
      2-3ft

    • Sunday

      Sunday:SSE wind 15 to 17 kt. Partly sunny. Seas around 2 ft.

      High: 84 °F

      SSE 17kt
      2ft

    • Sunday Night

      Sunday Night:SE wind 14 to 17 kt. A slight chance of showers and thunderstorms after 1am.   Seas around 2 ft.

      Low: 83 °F

      SE 17kt
      2ft

    • Monday

      Monday:SSE wind 15 to 17 kt. A slight chance of showers and thunderstorms before 1pm.   Seas around 2 ft.

      High: 84 °F

      SSE 17kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:30 am CDT Jun 4, 2026
Forecast Valid: 4am CDT Jun 4, 2026-6pm CDT Jun 10, 2026

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Detailed Forecast


Thursday
E wind 5 to 11 kt. A slight chance of showers and thunderstorms before 10am. Seas around 1 ft.
Thursday Night
E wind 8 to 11 kt becoming SSE after midnight. Increasing clouds. Seas 1 to 2 ft.
Friday
SSE wind 6 to 12 kt becoming ESE in the morning. Partly sunny. Seas 1 to 2 ft.
Friday Night
ESE wind around 11 kt. A slight chance of showers after 1am. Seas 2 to 3 ft.
Saturday
SE wind 9 to 14 kt. A slight chance of showers, with thunderstorms also possible after 10am. Seas around 2 ft.
Saturday Night
SE wind 13 to 15 kt. A slight chance of showers and thunderstorms after 1am. Seas 2 to 3 ft.
Sunday
SSE wind 15 to 17 kt. Partly sunny. Seas around 2 ft.
Sunday Night
SE wind 14 to 17 kt. A slight chance of showers and thunderstorms after 1am. Seas around 2 ft.
Monday
SSE wind 15 to 17 kt. A slight chance of showers and thunderstorms before 1pm. Seas around 2 ft.

Winds and seas 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: 26.11°N 97.16°W
Last Update: 4:30 am CDT Jun 4, 2026
Forecast Valid: 4am CDT Jun 4, 2026-6pm CDT Jun 10, 2026
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