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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:N wind 9 to 15 kt. Mostly cloudy. Seas 2 to 4 ft.

      High: 67 °F

      N 15kt
      2-4ft

    • Tonight

      Tonight:NNE wind 5 to 9 kt becoming NNW after midnight. A chance of showers, mainly before 3am.   Seas 1 to 2 ft.

      Low: 60 °F

      NNE 9kt
      1-2ft

    • Saturday

      Saturday:NNW wind 7 to 9 kt becoming NE in the afternoon. Mostly cloudy. Seas 1 to 2 ft.

      High: 73 °F

      N 9kt
      1-2ft

    • Saturday Night

      Saturday Night:NE wind around 6 kt becoming SSW after midnight. Mostly cloudy. Seas around 1 ft.

      Low: 70 °F

      NE 6kt
      1ft

    • Sunday

      Sunday:W wind 5 to 11 kt becoming NNE in the afternoon. Partly sunny. Seas 1 to 2 ft.

      High: 74 °F

      N 11kt
      1-2ft

    • Sunday Night

      Sunday Night:N wind 12 to 21 kt. Partly cloudy. Seas 1 to 3 ft.

      Low: 63 °F

      N 21kt
      1-3ft

    • Monday

      Monday:N wind 12 to 19 kt. Mostly sunny. Seas 5 ft subsiding to 2 ft.

      High: 66 °F

      N 19kt
      5ftWaves Subsiding

    • Monday Night

      Monday Night:NE wind 8 to 11 kt. Mostly cloudy. Seas around 2 ft.

      Low: 63 °F

      NE 11kt
      2ft

    • Tuesday

      Tuesday:NE wind around 9 kt becoming ESE in the afternoon. Mostly sunny. Seas 1 to 2 ft.

      High: 70 °F

      ENE 9kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:00 am CST Dec 5, 2025
Forecast Valid: 8am CST Dec 5, 2025-6pm CST Dec 11, 2025

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Detailed Forecast


Today
N wind 9 to 15 kt. Mostly cloudy. Seas 2 to 4 ft.
Tonight
NNE wind 5 to 9 kt becoming NNW after midnight. A chance of showers, mainly before 3am. Seas 1 to 2 ft.
Saturday
NNW wind 7 to 9 kt becoming NE in the afternoon. Mostly cloudy. Seas 1 to 2 ft.
Saturday Night
NE wind around 6 kt becoming SSW after midnight. Mostly cloudy. Seas around 1 ft.
Sunday
W wind 5 to 11 kt becoming NNE in the afternoon. Partly sunny. Seas 1 to 2 ft.
Sunday Night
N wind 12 to 21 kt. Partly cloudy. Seas 1 to 3 ft.
Monday
N wind 12 to 19 kt. Mostly sunny. Seas 5 ft subsiding to 2 ft.
Monday Night
NE wind 8 to 11 kt. Mostly cloudy. Seas around 2 ft.
Tuesday
NE wind around 9 kt becoming ESE in the afternoon. Mostly sunny. Seas 1 to 2 ft.

*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: 8:00 am CST Dec 5, 2025
Forecast Valid: 8am CST Dec 5, 2025-6pm CST Dec 11, 2025
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