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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSE wind 14 to 17 kt becoming NW in the afternoon. A slight chance of showers and thunderstorms after 3pm.   Seas around 2 ft.

      High: 73 °FFalling Temperatures

      S 17kt
      2ft

    • Tonight

      Tonight:NNW wind 14 to 17 kt. A chance of showers and thunderstorms, mainly between 9pm and 3am.   Seas around 2 ft.

      Low: 50 °F

      NNW 17kt
      2ft

    • Sunday

      Sunday:NNW wind 17 to 22 kt. A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon.   Seas 2 to 4 ft.

      High: 50 °F

      NNW 22kt
      2-4ft

    • Sunday Night

      Sunday Night:N wind 22 to 24 kt. Mostly cloudy. Seas 4 to 6 ft.

      Low: 39 °F

      N 24kt
      4-6ft

    • Monday

      Monday:NNW wind 20 to 24 kt. Partly sunny. Seas 6 ft subsiding to 3 ft.

      High: 49 °F

      NNW 24kt
      6ftWaves Subsiding

    • Monday Night

      Monday Night:N wind 10 to 19 kt. Mostly cloudy. Seas 3 to 4 ft.

      Low: 44 °F

      N 19kt
      3-4ft

    • Tuesday

      Tuesday:N wind around 10 kt becoming E in the afternoon. Mostly sunny. Seas 2 to 3 ft.

      High: 60 °F

      N 10kt
      2-3ft

    • Tuesday Night

      Tuesday Night:SE wind 6 to 9 kt. Mostly cloudy. Seas around 2 ft.

      Low: 56 °F

      SE 9kt
      2ft

    • Wednesday

      Wednesday:ENE wind 7 to 13 kt becoming N in the morning. A chance of showers.   Seas around 2 ft.

      High: 63 °F

      N 13kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:00 am CST Jan 24, 2026
Forecast Valid: 7am CST Jan 24, 2026-6pm CST Jan 30, 2026

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Detailed Forecast


Today
SSE wind 14 to 17 kt becoming NW in the afternoon. A slight chance of showers and thunderstorms after 3pm. Seas around 2 ft.
Tonight
NNW wind 14 to 17 kt. A chance of showers and thunderstorms, mainly between 9pm and 3am. Seas around 2 ft.
Sunday
NNW wind 17 to 22 kt. A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon. Seas 2 to 4 ft.
Sunday Night
N wind 22 to 24 kt. Mostly cloudy. Seas 4 to 6 ft.
Monday
NNW wind 20 to 24 kt. Partly sunny. Seas 6 ft subsiding to 3 ft.
Monday Night
N wind 10 to 19 kt. Mostly cloudy. Seas 3 to 4 ft.
Tuesday
N wind around 10 kt becoming E in the afternoon. Mostly sunny. Seas 2 to 3 ft.
Tuesday Night
SE wind 6 to 9 kt. Mostly cloudy. Seas around 2 ft.
Wednesday
ENE wind 7 to 13 kt becoming N in the morning. A chance of showers. Seas around 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: 7:00 am CST Jan 24, 2026
Forecast Valid: 7am CST Jan 24, 2026-6pm CST Jan 30, 2026
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