For More Weather Information:

Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SE wind 5 to 14 kt. A slight chance of showers and thunderstorms after 4am.   Seas 1 ft or less.

      Low: 72 °F

      SE 14kt
      < 1ft

    • Sunday

      Sunday:E wind 5 to 12 kt. A chance of showers, mainly before 1pm.   Seas 1 ft or less.

      High: 79 °F

      E 12kt
      < 1ft

    • Sunday Night

      Sunday Night:E wind 7 to 10 kt becoming SSE after midnight. A slight chance of showers after midnight.   Seas 1 ft or less.

      Low: 71 °F

      E 10kt
      < 1ft

    • Monday

      Monday:SSE wind 7 to 17 kt. Mostly cloudy. Seas 1 ft or less.

      High: 80 °F

      SSE 17kt
      < 1ft

    • Monday Night

      Monday Night:SSE wind around 15 kt. Cloudy. Seas 1 ft or less.

      Low: 71 °F

      SSE 15kt
      < 1ft

    • Tuesday

      Tuesday:SSE wind 14 to 20 kt, with gusts as high as 26 kt. Mostly cloudy. Seas 1 ft or less.

      High: 80 °F

      SSE 20kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSE wind 12 to 19 kt. Mostly cloudy. Seas 1 ft or less.

      Low: 71 °F

      SSE 19kt
      < 1ft

    • Wednesday

      Wednesday:S wind 9 to 11 kt becoming N in the afternoon. Mostly sunny. Seas 1 ft or less.

      High: 83 °F

      S 11kt
      < 1ft

    • Wednesday Night

      Wednesday Night:ENE wind 7 to 17 kt becoming N after midnight. Mostly clear. Seas 1 ft or less.

      Low: 63 °F

      N 17kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:00 pm CST Mar 7, 2026
Forecast Valid: 6pm CST Mar 7, 2026-6pm CDT Mar 14, 2026

View Nearby Observations

Detailed Forecast


Tonight
SE wind 5 to 14 kt. A slight chance of showers and thunderstorms after 4am. Seas 1 ft or less.
Sunday
E wind 5 to 12 kt. A chance of showers, mainly before 1pm. Seas 1 ft or less.
Sunday Night
E wind 7 to 10 kt becoming SSE after midnight. A slight chance of showers after midnight. Seas 1 ft or less.
Monday
SSE wind 7 to 17 kt. Mostly cloudy. Seas 1 ft or less.
Monday Night
SSE wind around 15 kt. Cloudy. Seas 1 ft or less.
Tuesday
SSE wind 14 to 20 kt, with gusts as high as 26 kt. Mostly cloudy. Seas 1 ft or less.
Tuesday Night
SSE wind 12 to 19 kt. Mostly cloudy. Seas 1 ft or less.
Wednesday
S wind 9 to 11 kt becoming N in the afternoon. Mostly sunny. Seas 1 ft or less.
Wednesday Night
ENE wind 7 to 17 kt becoming N after midnight. Mostly clear. Seas 1 ft or less.

Winds and waves 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: 26.15°N 97.29°W
Last Update: 6:00 pm CST Mar 7, 2026
Forecast Valid: 6pm CST Mar 7, 2026-6pm CDT Mar 14, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data