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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:ESE wind around 11 kt. Sunny. Seas around 1 ft.

      High: 83 °F

      ESE 11kt
      1ft

    • Tonight

      Tonight:E wind around 11 kt becoming SSE after midnight. Increasing clouds. Seas 1 to 2 ft.

      Low: 81 °F

      E 11kt
      1-2ft

    • Sunday

      Sunday:ESE wind 8 to 11 kt. Mostly cloudy, then gradually becoming sunny. Seas around 1 ft.

      High: 83 °F

      ESE 11kt
      1ft

    • Sunday Night

      Sunday Night:ESE wind 9 to 12 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 81 °F

      ESE 12kt
      1-2ft

    • Monday

      Monday:E wind 7 to 11 kt. Mostly sunny. Seas around 1 ft.

      High: 83 °F

      E 11kt
      1ft

    • Monday Night

      Monday Night:E wind 7 to 11 kt. A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am.   Seas 1 to 2 ft.

      Low: 81 °F

      E 11kt
      1-2ft

    • Tuesday

      Tuesday:Variable winds less than 5 kt becoming E 6 to 11 kt in the morning. A chance of showers and thunderstorms.   Seas around 1 ft.

      High: 83 °F

      ⇑E 11kt
      1ft

    • Tuesday Night

      Tuesday Night:E wind 6 to 12 kt. A slight chance of showers and thunderstorms after 1am.   Seas 1 to 2 ft.

      Low: 81 °F

      E 12kt
      1-2ft

    • Wednesday

      Wednesday:E wind 6 to 13 kt. A slight chance of showers and thunderstorms before 1pm.   Seas 1 to 2 ft.

      High: 83 °F

      E 13kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:45 pm CDT May 30, 2026
Forecast Valid: 4pm CDT May 30, 2026-6pm CDT Jun 5, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
ESE wind around 11 kt. Sunny. Seas around 1 ft.
Tonight
E wind around 11 kt becoming SSE after midnight. Increasing clouds. Seas 1 to 2 ft.
Sunday
ESE wind 8 to 11 kt. Mostly cloudy, then gradually becoming sunny. Seas around 1 ft.
Sunday Night
ESE wind 9 to 12 kt. Partly cloudy. Seas 1 to 2 ft.
Monday
E wind 7 to 11 kt. Mostly sunny. Seas around 1 ft.
Monday Night
E wind 7 to 11 kt. A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Seas 1 to 2 ft.
Tuesday
Variable winds less than 5 kt becoming E 6 to 11 kt in the morning. A chance of showers and thunderstorms. Seas around 1 ft.
Tuesday Night
E wind 6 to 12 kt. A slight chance of showers and thunderstorms after 1am. Seas 1 to 2 ft.
Wednesday
E wind 6 to 13 kt. A slight chance of showers and thunderstorms before 1pm. Seas 1 to 2 ft.

Winds and seas higher in and near thunderstorms Tuesday through Thursday Night.

*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: 4:45 pm CDT May 30, 2026
Forecast Valid: 4pm CDT May 30, 2026-6pm CDT Jun 5, 2026
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