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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:SSE wind around 23 kt. Mostly cloudy. Seas 3 to 4 ft.

      Low: 74 °F

      SSE 23kt
      3-4ft

    • Saturday

      Saturday:SSE wind 18 to 23 kt. Mostly sunny. Seas 3 to 4 ft.

      High: 79 °F

      SSE 23kt
      3-4ft

    • Saturday Night

      Saturday Night:SSE wind 9 to 17 kt becoming SSW after midnight. A chance of showers and thunderstorms, mainly after 5am.   Seas 2 to 3 ft.

      Low: 77 °F

      SSE 17kt
      2-3ft

    • Sunday

      Sunday:WSW wind 9 to 17 kt becoming N in the afternoon. Showers and possibly a thunderstorm.   Seas 2 to 3 ft.

      High: 75 °FFalling Temperatures

      N 17kt
      2-3ft

    • Sunday Night

      Sunday Night:N wind around 17 kt. Showers.   Seas around 2 ft.

      Low: 58 °F

      N 17kt
      2ft

    • Monday

      Monday:NW wind 11 to 16 kt. A chance of showers, mainly before noon.   Seas around 2 ft.

      High: 63 °F

      NW 16kt
      2ft

    • Monday Night

      Monday Night:NNW wind 10 to 15 kt. A chance of showers, mainly after midnight.   Seas 2 to 3 ft.

      Low: 62 °F

      NNW 15kt
      2-3ft

    • Tuesday

      Tuesday:N wind 13 to 17 kt. A slight chance of showers.   Seas 2 to 4 ft.

      High: 65 °F

      N 17kt
      2-4ft

    • Tuesday Night

      Tuesday Night:NNE wind 8 to 12 kt becoming ESE after midnight. Mostly cloudy. Seas around 2 ft.

      Low: 65 °F

      NNE 12kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:00 pm CST Nov 28, 2025
Forecast Valid: 11pm CST Nov 28, 2025-6pm CST Dec 5, 2025

View Nearby Observations

Detailed Forecast


Overnight
SSE wind around 23 kt. Mostly cloudy. Seas 3 to 4 ft.
Saturday
SSE wind 18 to 23 kt. Mostly sunny. Seas 3 to 4 ft.
Saturday Night
SSE wind 9 to 17 kt becoming SSW after midnight. A chance of showers and thunderstorms, mainly after 5am. Seas 2 to 3 ft.
Sunday
WSW wind 9 to 17 kt becoming N in the afternoon. Showers and possibly a thunderstorm. Seas 2 to 3 ft.
Sunday Night
N wind around 17 kt. Showers. Seas around 2 ft.
Monday
NW wind 11 to 16 kt. A chance of showers, mainly before noon. Seas around 2 ft.
Monday Night
NNW wind 10 to 15 kt. A chance of showers, mainly after midnight. Seas 2 to 3 ft.
Tuesday
N wind 13 to 17 kt. A slight chance of showers. Seas 2 to 4 ft.
Tuesday Night
NNE wind 8 to 12 kt becoming ESE after midnight. Mostly cloudy. 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: 11:00 pm CST Nov 28, 2025
Forecast Valid: 11pm CST Nov 28, 2025-6pm CST Dec 5, 2025
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