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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:NNE wind 5 to 8 kt becoming NNW in the evening. A chance of showers, mainly after 5am.   Seas 1 to 2 ft.

      Low: 65 °F

      NNE 8kt
      1-2ft

    • Saturday

      Saturday:NNW wind 6 to 8 kt becoming ENE in the afternoon. Partly sunny. Seas 1 to 2 ft.

      High: 73 °F

      N 8kt
      1-2ft

    • Saturday Night

      Saturday Night:E wind 5 to 7 kt becoming SW after midnight. Mostly cloudy. Seas around 1 ft.

      Low: 71 °F

      E 7kt
      1ft

    • Sunday

      Sunday:WSW wind 5 to 9 kt becoming NNE in the afternoon. Partly sunny. Seas around 1 ft.

      High: 76 °F

      N 9kt
      1ft

    • Sunday Night

      Sunday Night:N wind 12 to 22 kt. Partly cloudy. Seas 1 to 3 ft.

      Low: 65 °F

      N 22kt
      1-3ft

    • Monday

      Monday:NNE wind 13 to 22 kt. Mostly sunny. Seas 5 ft subsiding to 2 ft.

      High: 66 °F

      NNE 22kt
      5ftWaves Subsiding

    • Monday Night

      Monday Night:NE wind 9 to 12 kt. Partly cloudy. Seas around 2 ft.

      Low: 64 °F

      NE 12kt
      2ft

    • Tuesday

      Tuesday:ENE wind around 10 kt becoming ESE in the afternoon. Mostly sunny. Seas 1 to 2 ft.

      High: 70 °F

      E 10kt
      1-2ft

    • Tuesday Night

      Tuesday Night:ESE wind around 9 kt becoming S after midnight. Partly cloudy. Seas around 1 ft.

      Low: 67 °F

      ESE 9kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:15 pm CST Dec 5, 2025
Forecast Valid: 6pm CST Dec 5, 2025-6pm CST Dec 12, 2025

View Nearby Observations

Detailed Forecast


Tonight
NNE wind 5 to 8 kt becoming NNW in the evening. A chance of showers, mainly after 5am. Seas 1 to 2 ft.
Saturday
NNW wind 6 to 8 kt becoming ENE in the afternoon. Partly sunny. Seas 1 to 2 ft.
Saturday Night
E wind 5 to 7 kt becoming SW after midnight. Mostly cloudy. Seas around 1 ft.
Sunday
WSW wind 5 to 9 kt becoming NNE in the afternoon. Partly sunny. Seas around 1 ft.
Sunday Night
N wind 12 to 22 kt. Partly cloudy. Seas 1 to 3 ft.
Monday
NNE wind 13 to 22 kt. Mostly sunny. Seas 5 ft subsiding to 2 ft.
Monday Night
NE wind 9 to 12 kt. Partly cloudy. Seas around 2 ft.
Tuesday
ENE wind around 10 kt becoming ESE in the afternoon. Mostly sunny. Seas 1 to 2 ft.
Tuesday Night
ESE wind around 9 kt becoming S after midnight. Partly cloudy. Seas around 1 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: 6:15 pm CST Dec 5, 2025
Forecast Valid: 6pm CST Dec 5, 2025-6pm CST Dec 12, 2025
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