For More Weather Information:

Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SW wind around 14 kt. A chance of showers and thunderstorms.   Seas around 2 ft.

      High: 83 °F

      SW 14kt
      2ft

    • Tonight

      Tonight:W wind 11 to 18 kt, with gusts as high as 26 kt. A chance of showers and thunderstorms, mainly between 2am and 3am.   Seas 1 to 2 ft.

      Low: 81 °F

      W 18kt
      1-2ft

    • Wednesday

      Wednesday:SW wind 10 to 15 kt becoming SSE in the afternoon. Sunny. Seas 1 to 2 ft.

      High: 88 °F

      SSE 15kt
      1-2ft

    • Wednesday Night

      Wednesday Night:S wind 16 to 19 kt. Mostly clear. Seas 2 to 3 ft.

      Low: 85 °F

      S 19kt
      2-3ft

    • Thursday

      Thursday:SSE wind 18 to 20 kt. Sunny. Seas 2 to 3 ft.

      High: 88 °F

      SSE 20kt
      2-3ft

    • Thursday Night

      Thursday Night:SSE wind 18 to 21 kt. Partly cloudy. Seas 3 to 4 ft.

      Low: 85 °F

      SSE 21kt
      3-4ft

    • Juneteenth

      Juneteenth:SSE wind 16 to 18 kt. Sunny. Seas around 3 ft.

      High: 87 °F

      SSE 18kt
      3ft

    • Friday Night

      Friday Night:SE wind around 16 kt. Partly cloudy. Seas 3 to 4 ft.

      Low: 85 °F

      SE 16kt
      3-4ft

    • Saturday

      Saturday:SE wind around 15 kt. Partly sunny. Seas 2 to 3 ft.

      High: 86 °F

      SE 15kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:45 pm CDT Jun 16, 2026
Forecast Valid: 4pm CDT Jun 16, 2026-6pm CDT Jun 22, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SW wind around 14 kt. A chance of showers and thunderstorms. Seas around 2 ft.
Tonight
W wind 11 to 18 kt, with gusts as high as 26 kt. A chance of showers and thunderstorms, mainly between 2am and 3am. Seas 1 to 2 ft.
Wednesday
SW wind 10 to 15 kt becoming SSE in the afternoon. Sunny. Seas 1 to 2 ft.
Wednesday Night
S wind 16 to 19 kt. Mostly clear. Seas 2 to 3 ft.
Thursday
SSE wind 18 to 20 kt. Sunny. Seas 2 to 3 ft.
Thursday Night
SSE wind 18 to 21 kt. Partly cloudy. Seas 3 to 4 ft.
Juneteenth
SSE wind 16 to 18 kt. Sunny. Seas around 3 ft.
Friday Night
SE wind around 16 kt. Partly cloudy. Seas 3 to 4 ft.
Saturday
SE wind around 15 kt. Partly sunny. Seas 2 to 3 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: 4:45 pm CDT Jun 16, 2026
Forecast Valid: 4pm CDT Jun 16, 2026-6pm CDT Jun 22, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data