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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SSE wind around 20 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 81 °F

      SSE 20kt
      2-3ft

    • Tonight

      Tonight:SSE wind 18 to 20 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 78 °F

      SSE 20kt
      2-3ft

    • Saturday

      Saturday:SSE wind around 18 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 82 °F

      SSE 18kt
      2-3ft

    • Saturday Night

      Saturday Night:SSE wind 16 to 19 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 80 °F

      SSE 19kt
      2-3ft

    • Sunday

      Sunday:SSE wind 18 to 21 kt. Partly sunny. Seas 2 to 3 ft.

      High: 82 °F

      SSE 21kt
      2-3ft

    • Sunday Night

      Sunday Night:SE wind around 20 kt. Mostly cloudy. Seas 3 to 4 ft.

      Low: 81 °F

      SE 20kt
      3-4ft

    • Monday

      Monday:SE wind 18 to 20 kt. Partly sunny. Seas around 3 ft.

      High: 84 °F

      SE 20kt
      3ft

    • Monday Night

      Monday Night:SE wind 17 to 20 kt. A slight chance of showers and thunderstorms after 1am.   Seas 3 to 5 ft.

      Low: 82 °F

      SE 20kt
      3-5ft

    • Tuesday

      Tuesday:SE wind 15 to 17 kt. Mostly cloudy. Seas 2 to 3 ft.

      High: 83 °F

      SE 17kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:15 pm CDT May 15, 2026
Forecast Valid: 1pm CDT May 15, 2026-6pm CDT May 21, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SSE wind around 20 kt. Mostly sunny. Seas 2 to 3 ft.
Tonight
SSE wind 18 to 20 kt. Mostly cloudy. Seas 2 to 3 ft.
Saturday
SSE wind around 18 kt. Mostly sunny. Seas 2 to 3 ft.
Saturday Night
SSE wind 16 to 19 kt. Mostly cloudy. Seas 2 to 3 ft.
Sunday
SSE wind 18 to 21 kt. Partly sunny. Seas 2 to 3 ft.
Sunday Night
SE wind around 20 kt. Mostly cloudy. Seas 3 to 4 ft.
Monday
SE wind 18 to 20 kt. Partly sunny. Seas around 3 ft.
Monday Night
SE wind 17 to 20 kt. A slight chance of showers and thunderstorms after 1am. Seas 3 to 5 ft.
Tuesday
SE wind 15 to 17 kt. Mostly cloudy. Seas 2 to 3 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: 1:15 pm CDT May 15, 2026
Forecast Valid: 1pm CDT May 15, 2026-6pm CDT May 21, 2026
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