For More Weather Information:

Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SE wind around 13 kt. Mostly sunny. Seas around 2 ft.

      High: 85 °F

      SE 13kt
      2ft

    • Tonight

      Tonight:SSE wind 10 to 13 kt. Increasing clouds. Seas around 2 ft.

      Low: 82 °F

      SSE 13kt
      2ft

    • Sunday

      Sunday:SE wind 10 to 13 kt. Partly sunny, then gradually becoming sunny. Seas 1 to 2 ft.

      High: 85 °F

      SE 13kt
      1-2ft

    • Sunday Night

      Sunday Night:SSE wind 11 to 13 kt. Mostly clear. Seas around 2 ft.

      Low: 82 °F

      SSE 13kt
      2ft

    • Monday

      Monday:SSE wind 10 to 13 kt. Mostly sunny. Seas around 2 ft.

      High: 86 °F

      SSE 13kt
      2ft

    • Monday Night

      Monday Night:SE wind 11 to 13 kt. Partly cloudy. Seas around 2 ft.

      Low: 82 °F

      SE 13kt
      2ft

    • Tuesday

      Tuesday:SE wind 10 to 13 kt. Partly sunny. Seas around 2 ft.

      High: 86 °F

      SE 13kt
      2ft

    • Tuesday Night

      Tuesday Night:SE wind around 13 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 82 °F

      SE 13kt
      2-3ft

    • Wednesday

      Wednesday:SE wind around 14 kt. Partly sunny. Seas around 2 ft.

      High: 85 °F

      SE 14kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:00 pm CDT Jul 11, 2026
Forecast Valid: 5pm CDT Jul 11, 2026-6pm CDT Jul 18, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SE wind around 13 kt. Mostly sunny. Seas around 2 ft.
Tonight
SSE wind 10 to 13 kt. Increasing clouds. Seas around 2 ft.
Sunday
SE wind 10 to 13 kt. Partly sunny, then gradually becoming sunny. Seas 1 to 2 ft.
Sunday Night
SSE wind 11 to 13 kt. Mostly clear. Seas around 2 ft.
Monday
SSE wind 10 to 13 kt. Mostly sunny. Seas around 2 ft.
Monday Night
SE wind 11 to 13 kt. Partly cloudy. Seas around 2 ft.
Tuesday
SE wind 10 to 13 kt. Partly sunny. Seas around 2 ft.
Tuesday Night
SE wind around 13 kt. Mostly cloudy. Seas 2 to 3 ft.
Wednesday
SE wind around 14 kt. Partly sunny. Seas around 2 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

Point Forecast: 26.11°N 97.16°W
Last Update: 5:00 pm CDT Jul 11, 2026
Forecast Valid: 5pm CDT Jul 11, 2026-6pm CDT Jul 18, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data