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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:NW wind 12 to 19 kt. A chance of showers, mainly before 8am.   Seas 2 to 3 ft.

      High: 63 °F

      NW 19kt
      2-3ft

    • Tonight

      Tonight:NNW wind 11 to 19 kt. A chance of showers, mainly after midnight.   Seas 2 to 4 ft.

      Low: 61 °F

      NNW 19kt
      2-4ft

    • Tuesday

      Tuesday:N wind 12 to 20 kt. A slight chance of showers before noon.   Seas 2 to 4 ft.

      High: 65 °F

      N 20kt
      2-4ft

    • Tuesday Night

      Tuesday Night:NNE wind 6 to 11 kt becoming SE after midnight. Cloudy. Seas around 2 ft.

      Low: 64 °FRising Temperatures

      NNE 11kt
      2ft

    • Wednesday

      Wednesday:SSE wind 9 to 13 kt. A chance of showers after noon.   Seas around 2 ft.

      High: 77 °F

      SSE 13kt
      2ft

    • Wednesday Night

      Wednesday Night:S wind around 12 kt. A chance of showers.   Seas around 2 ft.

      Low: 75 °F

      S 12kt
      2ft

    • Thursday

      Thursday:S wind around 12 kt. A chance of showers, with thunderstorms also possible after noon.   Seas 1 to 2 ft.

      High: 77 °F

      S 12kt
      1-2ft

    • Thursday Night

      Thursday Night:SE wind 12 to 15 kt becoming NNW in the evening. Showers likely and possibly a thunderstorm.   Seas 1 to 2 ft.

      Low: 64 °F

      NNW 15kt
      1-2ft

    • Friday

      Friday:NNW wind 12 to 15 kt. A chance of showers, with thunderstorms also possible after noon.   Seas around 2 ft.

      High: 68 °F

      NNW 15kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:45 am CST Dec 1, 2025
Forecast Valid: 7am CST Dec 1, 2025-6pm CST Dec 7, 2025

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Detailed Forecast


Today
NW wind 12 to 19 kt. A chance of showers, mainly before 8am. Seas 2 to 3 ft.
Tonight
NNW wind 11 to 19 kt. A chance of showers, mainly after midnight. Seas 2 to 4 ft.
Tuesday
N wind 12 to 20 kt. A slight chance of showers before noon. Seas 2 to 4 ft.
Tuesday Night
NNE wind 6 to 11 kt becoming SE after midnight. Cloudy. Seas around 2 ft.
Wednesday
SSE wind 9 to 13 kt. A chance of showers after noon. Seas around 2 ft.
Wednesday Night
S wind around 12 kt. A chance of showers. Seas around 2 ft.
Thursday
S wind around 12 kt. A chance of showers, with thunderstorms also possible after noon. Seas 1 to 2 ft.
Thursday Night
SE wind 12 to 15 kt becoming NNW in the evening. Showers likely and possibly a thunderstorm. Seas 1 to 2 ft.
Friday
NNW wind 12 to 15 kt. A chance of showers, with thunderstorms also possible after noon. 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: 7:45 am CST Dec 1, 2025
Forecast Valid: 7am CST Dec 1, 2025-6pm CST Dec 7, 2025
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