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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:S wind 7 to 12 kt becoming variable and less than 5 kt after midnight. Mostly cloudy. Seas around 2 ft.

      Low: 68 °F

      S 12kt⇓
      2ft

    • Friday

      Friday:Variable winds less than 5 kt becoming N 5 to 9 kt in the morning. Cloudy, then gradually becoming mostly sunny. Seas 1 to 3 ft.

      High: 74 °F

      ⇑N 9kt
      1-3ft

    • Friday Night

      Friday Night:NE wind 5 to 9 kt becoming E after midnight. Partly cloudy. Seas 1 to 2 ft.

      Low: 68 °F

      NE 9kt
      1-2ft

    • Saturday

      Saturday:ESE wind 5 to 11 kt. Mostly sunny. Seas 1 to 2 ft.

      High: 73 °F

      ESE 11kt
      1-2ft

    • Saturday Night

      Saturday Night:ESE wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 68 °F

      ESE 10kt
      1-2ft

    • Sunday

      Sunday:SE wind 9 to 13 kt. Mostly sunny. Seas 1 to 2 ft.

      High: 74 °F

      SE 13kt
      1-2ft

    • Sunday Night

      Sunday Night:SSE wind 9 to 12 kt. Mostly clear. Seas 1 ft building to 4 ft.

      Low: 70 °F

      SSE 12kt
      Waves Building4ft

    • Monday

      Monday:SSE wind 9 to 13 kt. Sunny. Seas 1 to 3 ft.

      High: 75 °F

      SSE 13kt
      1-3ft

    • Monday Night

      Monday Night:ESE wind 9 to 12 kt. Partly cloudy. Seas 1 to 3 ft.

      Low: 69 °F

      ESE 12kt
      1-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:30 pm CST Feb 26, 2026
Forecast Valid: 9pm CST Feb 26, 2026-6pm CST Mar 5, 2026

View Nearby Observations

Detailed Forecast


Tonight
S wind 7 to 12 kt becoming variable and less than 5 kt after midnight. Mostly cloudy. Seas around 2 ft.
Friday
Variable winds less than 5 kt becoming N 5 to 9 kt in the morning. Cloudy, then gradually becoming mostly sunny. Seas 1 to 3 ft.
Friday Night
NE wind 5 to 9 kt becoming E after midnight. Partly cloudy. Seas 1 to 2 ft.
Saturday
ESE wind 5 to 11 kt. Mostly sunny. Seas 1 to 2 ft.
Saturday Night
ESE wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.
Sunday
SE wind 9 to 13 kt. Mostly sunny. Seas 1 to 2 ft.
Sunday Night
SSE wind 9 to 12 kt. Mostly clear. Seas 1 ft building to 4 ft.
Monday
SSE wind 9 to 13 kt. Sunny. Seas 1 to 3 ft.
Monday Night
ESE wind 9 to 12 kt. Partly cloudy. Seas 1 to 3 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: 9:30 pm CST Feb 26, 2026
Forecast Valid: 9pm CST Feb 26, 2026-6pm CST Mar 5, 2026
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