For More Weather Information:

Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:ESE wind 14 to 17 kt. A chance of showers and thunderstorms, mainly after 4am.   Seas 2 to 4 ft.

      Low: 83 °F

      ESE 17kt
      2-4ft

    • Saturday

      Saturday:ESE wind 14 to 17 kt. Showers likely, with thunderstorms also possible after 10am.   Seas 2 to 4 ft.

      High: 85 °F

      ESE 17kt
      2-4ft

    • Saturday Night

      Saturday Night:ESE wind 16 to 20 kt. A chance of showers and thunderstorms, mainly after 2am.   Seas 3 to 5 ft.

      Low: 83 °F

      ESE 20kt
      3-5ft

    • Sunday

      Sunday:SE wind 15 to 17 kt. A chance of showers and thunderstorms before 1pm.   Seas 2 to 3 ft.

      High: 85 °F

      SE 17kt
      2-3ft

    • Sunday Night

      Sunday Night:SSE wind around 16 kt. Showers likely and possibly a thunderstorm after 1am.   Seas 2 to 4 ft.

      Low: 82 °F

      SSE 16kt
      2-4ft

    • Monday

      Monday:SSE wind 13 to 15 kt. Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm.   Seas around 2 ft.

      High: 85 °F

      SSE 15kt
      2ft

    • Monday Night

      Monday Night:SE wind 12 to 15 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.   Seas 2 to 3 ft.

      Low: 82 °F

      SE 15kt
      2-3ft

    • Tuesday

      Tuesday:SSE wind 12 to 15 kt. Showers likely and possibly a thunderstorm.   Seas around 2 ft.

      High: 84 °F

      SSE 15kt
      2ft

    • Tuesday Night

      Tuesday Night:SE wind 13 to 17 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.   Seas 2 to 3 ft.

      Low: 82 °F

      SE 17kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:00 pm CDT Jun 12, 2026
Forecast Valid: 7pm CDT Jun 12, 2026-6pm CDT Jun 19, 2026

View Nearby Observations

Detailed Forecast


Tonight
ESE wind 14 to 17 kt. A chance of showers and thunderstorms, mainly after 4am. Seas 2 to 4 ft.
Saturday
ESE wind 14 to 17 kt. Showers likely, with thunderstorms also possible after 10am. Seas 2 to 4 ft.
Saturday Night
ESE wind 16 to 20 kt. A chance of showers and thunderstorms, mainly after 2am. Seas 3 to 5 ft.
Sunday
SE wind 15 to 17 kt. A chance of showers and thunderstorms before 1pm. Seas 2 to 3 ft.
Sunday Night
SSE wind around 16 kt. Showers likely and possibly a thunderstorm after 1am. Seas 2 to 4 ft.
Monday
SSE wind 13 to 15 kt. Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Seas around 2 ft.
Monday Night
SE wind 12 to 15 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Seas 2 to 3 ft.
Tuesday
SSE wind 12 to 15 kt. Showers likely and possibly a thunderstorm. Seas around 2 ft.
Tuesday Night
SE wind 13 to 17 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. 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: 7:00 pm CDT Jun 12, 2026
Forecast Valid: 7pm CDT Jun 12, 2026-6pm CDT Jun 19, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data