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 6 kt becoming NE. Mostly cloudy. Seas 1 to 2 ft.

      High: 73 °F

      N 6kt
      1-2ft

    • Tonight

      Tonight:ENE wind around 6 kt becoming SW after midnight. Cloudy, then gradually becoming partly cloudy. Seas around 1 ft.

      Low: 70 °F

      ENE 6kt
      1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming N 5 to 9 kt in the morning. Patchy fog between 9am and 10am.  Seas around 1 ft.

      High: 75 °F

      ⇑N 9kt
      1ft

    • Sunday Night

      Sunday Night:N wind 9 to 14 kt increasing to 17 to 22 kt after midnight. Partly cloudy. Seas 1 to 3 ft.

      Low: 64 °F

      ⇑N 22kt
      1-3ft

    • Monday

      Monday:N wind 14 to 20 kt. Mostly sunny. Seas 5 ft subsiding to 2 ft.

      High: 67 °F

      N 20kt
      5ftWaves Subsiding

    • Monday Night

      Monday Night:NE wind 7 to 13 kt. Partly cloudy. Seas around 2 ft.

      Low: 64 °F

      NE 13kt
      2ft

    • Tuesday

      Tuesday:NE wind 6 to 8 kt becoming SE in the afternoon. Sunny. Seas 1 to 2 ft.

      High: 70 °F

      ESE 8kt
      1-2ft

    • Tuesday Night

      Tuesday Night:SE wind 8 to 11 kt becoming S after midnight. Partly cloudy. Seas around 1 ft.

      Low: 67 °F

      S 11kt
      1ft

    • Wednesday

      Wednesday:S wind 11 to 14 kt. Sunny. Seas 1 to 2 ft.

      High: 76 °F

      S 14kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:30 pm CST Dec 6, 2025
Forecast Valid: 1pm CST Dec 6, 2025-6pm CST Dec 12, 2025

View Nearby Observations

Detailed Forecast


This Afternoon
N wind around 6 kt becoming NE. Mostly cloudy. Seas 1 to 2 ft.
Tonight
ENE wind around 6 kt becoming SW after midnight. Cloudy, then gradually becoming partly cloudy. Seas around 1 ft.
Sunday
Variable winds less than 5 kt becoming N 5 to 9 kt in the morning. Patchy fog between 9am and 10am. Seas around 1 ft.
Sunday Night
N wind 9 to 14 kt increasing to 17 to 22 kt after midnight. Partly cloudy. Seas 1 to 3 ft.
Monday
N wind 14 to 20 kt. Mostly sunny. Seas 5 ft subsiding to 2 ft.
Monday Night
NE wind 7 to 13 kt. Partly cloudy. Seas around 2 ft.
Tuesday
NE wind 6 to 8 kt becoming SE in the afternoon. Sunny. Seas 1 to 2 ft.
Tuesday Night
SE wind 8 to 11 kt becoming S after midnight. Partly cloudy. Seas around 1 ft.
Wednesday
S wind 11 to 14 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: 1:30 pm CST Dec 6, 2025
Forecast Valid: 1pm CST Dec 6, 2025-6pm CST Dec 12, 2025
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data