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 15 kt. Mostly sunny. Seas around 2 ft.

      High: 80 °F

      N 15kt
      2ft

    • Tonight

      Tonight:NNE wind 8 to 13 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 77 °F

      NNE 13kt
      1-2ft

    • Tuesday

      Tuesday:N wind around 10 kt. Mostly sunny. Seas around 1 ft.

      High: 79 °F

      N 10kt
      1ft

    • Tuesday Night

      Tuesday Night:ENE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 1 ft.

      Low: 76 °F

      ENE 10kt⇓
      1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming ENE 5 to 10 kt in the afternoon. Sunny. Seas 1 to 2 ft.

      High: 80 °F

      ⇑ENE 10kt
      1-2ft

    • Wednesday Night

      Wednesday Night:ENE wind 6 to 10 kt becoming SE after midnight. Mostly clear. Seas 1 to 2 ft.

      Low: 76 °F

      ENE 10kt
      1-2ft

    • Thursday

      Thursday:ESE wind 5 to 12 kt. Sunny. Seas 1 to 2 ft.

      High: 81 °F

      ESE 12kt
      1-2ft

    • Thursday Night

      Thursday Night:SSE wind around 14 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 79 °F

      SSE 14kt
      1-2ft

    • Friday

      Friday:SSE wind 14 to 18 kt. Partly sunny. Seas 2 to 3 ft.

      High: 81 °F

      SSE 18kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

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

View Nearby Observations

Detailed Forecast


This Afternoon
N wind around 15 kt. Mostly sunny. Seas around 2 ft.
Tonight
NNE wind 8 to 13 kt. Partly cloudy. Seas 1 to 2 ft.
Tuesday
N wind around 10 kt. Mostly sunny. Seas around 1 ft.
Tuesday Night
ENE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas around 1 ft.
Wednesday
Variable winds less than 5 kt becoming ENE 5 to 10 kt in the afternoon. Sunny. Seas 1 to 2 ft.
Wednesday Night
ENE wind 6 to 10 kt becoming SE after midnight. Mostly clear. Seas 1 to 2 ft.
Thursday
ESE wind 5 to 12 kt. Sunny. Seas 1 to 2 ft.
Thursday Night
SSE wind around 14 kt. Partly cloudy. Seas 1 to 2 ft.
Friday
SSE wind 14 to 18 kt. Partly sunny. Seas 2 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.
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 May 11, 2026
Forecast Valid: 5pm CDT May 11, 2026-6pm CDT May 18, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data