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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSE wind 12 to 16 kt. Mostly sunny. Seas around 2 ft.

      High: 78 °F

      SSE 16kt
      2ft

    • Tonight

      Tonight:SSE wind around 16 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 76 °F

      SSE 16kt
      2-3ft

    • Tuesday

      Tuesday:SSE wind 16 to 19 kt. Partly sunny. Seas around 2 ft.

      High: 81 °F

      SSE 19kt
      2ft

    • Tuesday Night

      Tuesday Night:SSE wind 16 to 18 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 78 °F

      SSE 18kt
      2-3ft

    • Wednesday

      Wednesday:SSE wind around 16 kt. Mostly sunny. Seas around 2 ft.

      High: 83 °F

      SSE 16kt
      2ft

    • Wednesday Night

      Wednesday Night:SE wind 11 to 14 kt. Mostly cloudy. Seas around 2 ft.

      Low: 77 °F

      SE 14kt
      2ft

    • Thursday

      Thursday:SE wind 9 to 14 kt becoming ENE in the afternoon. A slight chance of showers and thunderstorms after 1pm.   Seas around 2 ft.

      High: 81 °F

      ENE 14kt
      2ft

    • Thursday Night

      Thursday Night:NNE wind 14 to 19 kt. A chance of showers and thunderstorms.   Seas 2 to 4 ft.

      Low: 74 °F

      NNE 19kt
      2-4ft

    • Friday

      Friday:NE wind around 14 kt becoming E in the afternoon. A chance of showers and thunderstorms, mainly before 1pm.   Seas around 2 ft.

      High: 78 °F

      E 14kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:45 am CDT May 4, 2026
Forecast Valid: 10am CDT May 4, 2026-6pm CDT May 10, 2026

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Detailed Forecast


Today
SSE wind 12 to 16 kt. Mostly sunny. Seas around 2 ft.
Tonight
SSE wind around 16 kt. Mostly cloudy. Seas 2 to 3 ft.
Tuesday
SSE wind 16 to 19 kt. Partly sunny. Seas around 2 ft.
Tuesday Night
SSE wind 16 to 18 kt. Mostly cloudy. Seas 2 to 3 ft.
Wednesday
SSE wind around 16 kt. Mostly sunny. Seas around 2 ft.
Wednesday Night
SE wind 11 to 14 kt. Mostly cloudy. Seas around 2 ft.
Thursday
SE wind 9 to 14 kt becoming ENE in the afternoon. A slight chance of showers and thunderstorms after 1pm. Seas around 2 ft.
Thursday Night
NNE wind 14 to 19 kt. A chance of showers and thunderstorms. Seas 2 to 4 ft.
Friday
NE wind around 14 kt becoming E in the afternoon. A chance of showers and thunderstorms, mainly 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: 9:45 am CDT May 4, 2026
Forecast Valid: 10am CDT May 4, 2026-6pm CDT May 10, 2026
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