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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:ESE wind around 9 kt becoming S after midnight. Mostly clear. Seas 1 to 2 ft.

      Low: 75 °F

      ESE 9kt
      1-2ft

    • Thursday

      Thursday:S wind 7 to 14 kt becoming SE in the afternoon. Sunny. Seas 1 to 2 ft.

      High: 81 °F

      SE 14kt
      1-2ft

    • Thursday Night

      Thursday Night:SSE wind around 16 kt. Partly cloudy. Seas around 2 ft.

      Low: 77 °F

      SSE 16kt
      2ft

    • Friday

      Friday:SSE wind 16 to 19 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 81 °F

      SSE 19kt
      2-3ft

    • Friday Night

      Friday Night:SE wind around 20 kt. Partly cloudy. Seas 2 to 3 ft.

      Low: 79 °F

      SE 20kt
      2-3ft

    • Saturday

      Saturday:SSE wind around 19 kt. Mostly sunny. Seas 2 to 3 ft.

      High: 82 °F

      SSE 19kt
      2-3ft

    • Saturday Night

      Saturday Night:SSE wind 17 to 19 kt. Partly cloudy. Seas 2 to 3 ft.

      Low: 81 °F

      SSE 19kt
      2-3ft

    • Sunday

      Sunday:SE wind 19 to 21 kt. Mostly cloudy. Seas 2 to 3 ft.

      High: 81 °F

      SE 21kt
      2-3ft

    • Sunday Night

      Sunday Night:SE wind 18 to 20 kt. Mostly cloudy. Seas 3 to 4 ft.

      Low: 81 °F

      SE 20kt
      3-4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:30 pm CDT May 13, 2026
Forecast Valid: 9pm CDT May 13, 2026-6pm CDT May 20, 2026

View Nearby Observations

Detailed Forecast


Tonight
ESE wind around 9 kt becoming S after midnight. Mostly clear. Seas 1 to 2 ft.
Thursday
S wind 7 to 14 kt becoming SE in the afternoon. Sunny. Seas 1 to 2 ft.
Thursday Night
SSE wind around 16 kt. Partly cloudy. Seas around 2 ft.
Friday
SSE wind 16 to 19 kt. Mostly sunny. Seas 2 to 3 ft.
Friday Night
SE wind around 20 kt. Partly cloudy. Seas 2 to 3 ft.
Saturday
SSE wind around 19 kt. Mostly sunny. Seas 2 to 3 ft.
Saturday Night
SSE wind 17 to 19 kt. Partly cloudy. Seas 2 to 3 ft.
Sunday
SE wind 19 to 21 kt. Mostly cloudy. Seas 2 to 3 ft.
Sunday Night
SE wind 18 to 20 kt. Mostly cloudy. Seas 3 to 4 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: 9:30 pm CDT May 13, 2026
Forecast Valid: 9pm CDT May 13, 2026-6pm CDT May 20, 2026
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