For More Weather Information:

Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:N wind around 22 kt. Partly sunny. Seas around 4 ft.

      High: 73 °F

      N 22kt
      4ft

    • Tonight

      Tonight:NE wind 10 to 19 kt. Partly cloudy. Seas 5 ft subsiding to 2 ft.

      Low: 71 °F

      NE 19kt
      5ftWaves Subsiding

    • Sunday

      Sunday:NE wind 9 to 11 kt. Mostly sunny. Seas around 2 ft.

      High: 76 °F

      NE 11kt
      2ft

    • Sunday Night

      Sunday Night:E wind around 11 kt becoming SSE after midnight. Partly cloudy. Seas 2 to 3 ft.

      Low: 74 °F

      E 11kt
      2-3ft

    • Monday

      Monday:SSE wind 10 to 15 kt. Mostly sunny. Seas around 2 ft.

      High: 78 °F

      SSE 15kt
      2ft

    • Monday Night

      Monday Night:SSE wind 15 to 17 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 76 °F

      SSE 17kt
      2-3ft

    • Tuesday

      Tuesday:SSE wind 16 to 19 kt. Partly sunny. Seas around 2 ft.

      High: 81 °F

      SSE 19kt
      2ft

    • Tuesday Night

      Tuesday Night:SSE wind 19 to 21 kt. Mostly cloudy. Seas 2 to 4 ft.

      Low: 78 °F

      SSE 21kt
      2-4ft

    • Wednesday

      Wednesday:SSE wind 15 to 19 kt. Partly sunny. Seas around 2 ft.

      High: 83 °F

      SSE 19kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:30 pm CDT May 2, 2026
Forecast Valid: 2pm CDT May 2, 2026-6pm CDT May 8, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
N wind around 22 kt. Partly sunny. Seas around 4 ft.
Tonight
NE wind 10 to 19 kt. Partly cloudy. Seas 5 ft subsiding to 2 ft.
Sunday
NE wind 9 to 11 kt. Mostly sunny. Seas around 2 ft.
Sunday Night
E wind around 11 kt becoming SSE after midnight. Partly cloudy. Seas 2 to 3 ft.
Monday
SSE wind 10 to 15 kt. Mostly sunny. Seas around 2 ft.
Monday Night
SSE wind 15 to 17 kt. Mostly cloudy. Seas 2 to 3 ft.
Tuesday
SSE wind 16 to 19 kt. Partly sunny. Seas around 2 ft.
Tuesday Night
SSE wind 19 to 21 kt. Mostly cloudy. Seas 2 to 4 ft.
Wednesday
SSE wind 15 to 19 kt. Partly sunny. 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

Point Forecast: 26.11°N 97.16°W
Last Update: 2:30 pm CDT May 2, 2026
Forecast Valid: 2pm CDT May 2, 2026-6pm CDT May 8, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data