For More Weather Information:

Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Friday

      Friday:S wind 5 to 11 kt becoming ESE in the afternoon. Partly sunny. Seas 1 to 2 ft.

      High: 84 °F

      ESE 11kt
      1-2ft

    • Friday Night

      Friday Night:SSE wind 10 to 12 kt. A slight chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 4am.   Seas 2 to 3 ft.

      Low: 82 °F

      SSE 12kt
      2-3ft

    • Saturday

      Saturday:SE wind 10 to 14 kt. A chance of showers and thunderstorms, mainly before noon.   Seas around 2 ft.

      High: 84 °F

      SE 14kt
      2ft

    • Saturday Night

      Saturday Night:SE wind around 15 kt. A slight chance of showers and thunderstorms after 1am.   Seas 2 to 3 ft.

      Low: 83 °F

      SE 15kt
      2-3ft

    • Sunday

      Sunday:SSE wind around 17 kt. Partly sunny. Seas around 2 ft.

      High: 84 °F

      SSE 17kt
      2ft

    • Sunday Night

      Sunday Night:SE wind 15 to 17 kt. A chance of showers and thunderstorms after 1am.   Seas around 2 ft.

      Low: 83 °F

      SE 17kt
      2ft

    • Monday

      Monday:SE wind around 17 kt. Partly sunny. Seas around 2 ft.

      High: 84 °F

      SE 17kt
      2ft

    • Monday Night

      Monday Night:ESE wind 14 to 16 kt. Partly cloudy. Seas around 2 ft.

      Low: 83 °F

      ESE 16kt
      2ft

    • Tuesday

      Tuesday:SE wind around 14 kt. Mostly sunny. Seas around 2 ft.

      High: 84 °F

      SE 14kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:45 am CDT Jun 5, 2026
Forecast Valid: 2am CDT Jun 5, 2026-6pm CDT Jun 11, 2026

View Nearby Observations

Detailed Forecast


Friday
S wind 5 to 11 kt becoming ESE in the afternoon. Partly sunny. Seas 1 to 2 ft.
Friday Night
SSE wind 10 to 12 kt. A slight chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 4am. Seas 2 to 3 ft.
Saturday
SE wind 10 to 14 kt. A chance of showers and thunderstorms, mainly before noon. Seas around 2 ft.
Saturday Night
SE wind around 15 kt. A slight chance of showers and thunderstorms after 1am. Seas 2 to 3 ft.
Sunday
SSE wind around 17 kt. Partly sunny. Seas around 2 ft.
Sunday Night
SE wind 15 to 17 kt. A chance of showers and thunderstorms after 1am. Seas around 2 ft.
Monday
SE wind around 17 kt. Partly sunny. Seas around 2 ft.
Monday Night
ESE wind 14 to 16 kt. Partly cloudy. Seas around 2 ft.
Tuesday
SE wind around 14 kt. Mostly 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: 2:45 am CDT Jun 5, 2026
Forecast Valid: 2am CDT Jun 5, 2026-6pm CDT Jun 11, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data