For More Weather Information:

Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SSE wind around 18 kt. Sunny. Seas around 2 ft.

      High: 70 °F

      SSE 18kt
      2ft

    • Tonight

      Tonight:S wind 18 to 20 kt. Mostly clear. Seas 2 to 3 ft.

      Low: 67 °F

      S 20kt
      2-3ft

    • Wednesday

      Wednesday:S wind 19 to 23 kt. Sunny. Seas 2 to 4 ft.

      High: 74 °F

      S 23kt
      2-4ft

    • Wednesday Night

      Wednesday Night:S wind 17 to 21 kt. Mostly clear. Seas 3 ft building to 6 ft.

      Low: 69 °F

      S 21kt
      Waves Building6ft

    • Thursday

      Thursday:S wind 15 to 18 kt. Sunny. Seas 7 ft subsiding to 1 ft.

      High: 76 °F

      S 18kt
      7ftWaves Subsiding

    • Thursday Night

      Thursday Night:SSE wind 7 to 14 kt becoming E after midnight. Mostly clear. Seas 2 to 4 ft.

      Low: 68 °F

      SSE 14kt
      2-4ft

    • Friday

      Friday:NE wind 7 to 11 kt. Sunny. Seas 2 to 3 ft.

      High: 73 °F

      NE 11kt
      2-3ft

    • Friday Night

      Friday Night:ENE wind 5 to 9 kt becoming ESE after midnight. Mostly clear. Seas 1 to 3 ft.

      Low: 68 °F

      ENE 9kt
      1-3ft

    • Saturday

      Saturday:ESE wind 6 to 11 kt. Sunny. Seas 1 to 2 ft.

      High: 74 °F

      ESE 11kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:18 pm CST Feb 24, 2026
Forecast Valid: 4pm CST Feb 24, 2026-6pm CST Mar 2, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SSE wind around 18 kt. Sunny. Seas around 2 ft.
Tonight
S wind 18 to 20 kt. Mostly clear. Seas 2 to 3 ft.
Wednesday
S wind 19 to 23 kt. Sunny. Seas 2 to 4 ft.
Wednesday Night
S wind 17 to 21 kt. Mostly clear. Seas 3 ft building to 6 ft.
Thursday
S wind 15 to 18 kt. Sunny. Seas 7 ft subsiding to 1 ft.
Thursday Night
SSE wind 7 to 14 kt becoming E after midnight. Mostly clear. Seas 2 to 4 ft.
Friday
NE wind 7 to 11 kt. Sunny. Seas 2 to 3 ft.
Friday Night
ENE wind 5 to 9 kt becoming ESE after midnight. Mostly clear. Seas 1 to 3 ft.
Saturday
ESE wind 6 to 11 kt. Sunny. Seas 1 to 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: 4:18 pm CST Feb 24, 2026
Forecast Valid: 4pm CST Feb 24, 2026-6pm CST Mar 2, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data