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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:NNE wind around 13 kt. A slight chance of showers and thunderstorms before 2pm.   Seas around 2 ft.

      High: 84 °F

      NNE 13kt
      2ft

    • Tonight

      Tonight:NE wind 5 to 11 kt. Mostly clear. Seas around 2 ft.

      Low: 79 °F

      NE 11kt
      2ft

    • Sunday

      Sunday:N wind 5 to 8 kt becoming WNW in the morning. Sunny. Seas around 2 ft.

      High: 85 °F

      NE 8kt
      2ft

    • Sunday Night

      Sunday Night:E wind 7 to 9 kt becoming SSE after midnight. Mostly clear. Seas around 2 ft.

      Low: 81 °F

      E 9kt
      2ft

    • Monday

      Monday:S wind 5 to 9 kt becoming ESE in the afternoon. Sunny. Seas 1 to 2 ft.

      High: 86 °F

      ESE 9kt
      1-2ft

    • Monday Night

      Monday Night:ESE wind 8 to 10 kt. A slight chance of showers and thunderstorms after 1am.   Seas around 1 ft.

      Low: 81 °F

      ESE 10kt
      1ft

    • Tuesday

      Tuesday:E wind 6 to 11 kt. A chance of showers and thunderstorms.   Seas 1 to 2 ft.

      High: 85 °F

      E 11kt
      1-2ft

    • Tuesday Night

      Tuesday Night:E wind around 10 kt. A slight chance of showers, then a chance of showers and thunderstorms after 1am.   Seas around 1 ft.

      Low: 80 °F

      E 10kt
      1ft

    • Wednesday

      Wednesday:NE wind 9 to 13 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm.   Seas 1 to 2 ft.

      High: 85 °F

      NE 13kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:00 pm CDT Oct 4, 2025
Forecast Valid: 12pm CDT Oct 4, 2025-6pm CDT Oct 10, 2025

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Detailed Forecast


This Afternoon
NNE wind around 13 kt. A slight chance of showers and thunderstorms before 2pm. Seas around 2 ft.
Tonight
NE wind 5 to 11 kt. Mostly clear. Seas around 2 ft.
Sunday
N wind 5 to 8 kt becoming WNW in the morning. Sunny. Seas around 2 ft.
Sunday Night
E wind 7 to 9 kt becoming SSE after midnight. Mostly clear. Seas around 2 ft.
Monday
S wind 5 to 9 kt becoming ESE in the afternoon. Sunny. Seas 1 to 2 ft.
Monday Night
ESE wind 8 to 10 kt. A slight chance of showers and thunderstorms after 1am. Seas around 1 ft.
Tuesday
E wind 6 to 11 kt. A chance of showers and thunderstorms. Seas 1 to 2 ft.
Tuesday Night
E wind around 10 kt. A slight chance of showers, then a chance of showers and thunderstorms after 1am. Seas around 1 ft.
Wednesday
NE wind 9 to 13 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Seas 1 to 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: 12:00 pm CDT Oct 4, 2025
Forecast Valid: 12pm CDT Oct 4, 2025-6pm CDT Oct 10, 2025
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