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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:SE wind 8 to 11 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 66 °F

      SE 11kt
      1-2ft

    • Thursday

      Thursday:SE wind 5 to 11 kt. Sunny. Seas 1 to 2 ft.

      High: 72 °F

      SE 11kt
      1-2ft

    • Thursday Night

      Thursday Night:ESE wind 9 to 11 kt becoming S after midnight. Mostly clear. Seas 1 to 2 ft.

      Low: 67 °F

      ESE 11kt
      1-2ft

    • Friday

      Friday:SSE wind 7 to 13 kt. Sunny. Seas 1 to 2 ft.

      High: 74 °F

      SSE 13kt
      1-2ft

    • Friday Night

      Friday Night:SSE wind around 12 kt. Clear. Seas around 2 ft.

      Low: 69 °F

      SSE 12kt
      2ft

    • Saturday

      Saturday:SSE wind 10 to 15 kt. Sunny. Seas 1 to 2 ft.

      High: 75 °F

      SSE 15kt
      1-2ft

    • Saturday Night

      Saturday Night:SSE wind around 14 kt. Clear. Seas around 2 ft.

      Low: 70 °F

      SSE 14kt
      2ft

    • Sunday

      Sunday:SSE wind 12 to 16 kt. Sunny. Seas 1 to 2 ft.

      High: 76 °F

      SSE 16kt
      1-2ft

    • Sunday Night

      Sunday Night:SSE wind 11 to 14 kt. Mostly clear. Seas around 2 ft.

      Low: 70 °F

      SSE 14kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:30 pm CDT Mar 18, 2026
Forecast Valid: 11pm CDT Mar 18, 2026-6pm CDT Mar 25, 2026

View Nearby Observations

Detailed Forecast


Overnight
SE wind 8 to 11 kt. Partly cloudy. Seas 1 to 2 ft.
Thursday
SE wind 5 to 11 kt. Sunny. Seas 1 to 2 ft.
Thursday Night
ESE wind 9 to 11 kt becoming S after midnight. Mostly clear. Seas 1 to 2 ft.
Friday
SSE wind 7 to 13 kt. Sunny. Seas 1 to 2 ft.
Friday Night
SSE wind around 12 kt. Clear. Seas around 2 ft.
Saturday
SSE wind 10 to 15 kt. Sunny. Seas 1 to 2 ft.
Saturday Night
SSE wind around 14 kt. Clear. Seas around 2 ft.
Sunday
SSE wind 12 to 16 kt. Sunny. Seas 1 to 2 ft.
Sunday Night
SSE wind 11 to 14 kt. Mostly clear. Seas around 2 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: 11:30 pm CDT Mar 18, 2026
Forecast Valid: 11pm CDT Mar 18, 2026-6pm CDT Mar 25, 2026
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