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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SE wind around 16 kt. Mostly sunny. Seas around 2 ft.

      High: 75 °F

      SE 16kt
      2ft

    • Tonight

      Tonight:SSE wind 12 to 16 kt. Increasing clouds. Seas 2 to 4 ft.

      Low: 71 °F

      SSE 16kt
      2-4ft

    • Thursday

      Thursday:SE wind 12 to 18 kt. Mostly cloudy, then gradually becoming sunny. Seas 2 to 4 ft.

      High: 76 °F

      SE 18kt
      2-4ft

    • Thursday Night

      Thursday Night:SSE wind around 17 kt. Partly cloudy. Seas 2 to 4 ft.

      Low: 72 °F

      SSE 17kt
      2-4ft

    • Friday

      Friday:SSE wind 16 to 18 kt. Mostly sunny. Seas 5 ft subsiding to 2 ft.

      High: 76 °F

      SSE 18kt
      5ftWaves Subsiding

    • Friday Night

      Friday Night:SSE wind 14 to 16 kt. Mostly cloudy. Seas 2 to 4 ft.

      Low: 72 °F

      SSE 16kt
      2-4ft

    • Saturday

      Saturday:SSE wind 14 to 16 kt. Partly sunny. Seas around 2 ft.

      High: 76 °F

      SSE 16kt
      2ft

    • Saturday Night

      Saturday Night:SE wind 9 to 14 kt. A slight chance of showers and thunderstorms after midnight.   Seas 2 to 4 ft.

      Low: 72 °F

      SE 14kt
      2-4ft

    • Sunday

      Sunday:SE wind 9 to 12 kt. A chance of showers.   Seas 2 to 3 ft.

      High: 76 °F

      SE 12kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:21 pm CST Mar 4, 2026
Forecast Valid: 5pm CST Mar 4, 2026-6pm CDT Mar 11, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SE wind around 16 kt. Mostly sunny. Seas around 2 ft.
Tonight
SSE wind 12 to 16 kt. Increasing clouds. Seas 2 to 4 ft.
Thursday
SE wind 12 to 18 kt. Mostly cloudy, then gradually becoming sunny. Seas 2 to 4 ft.
Thursday Night
SSE wind around 17 kt. Partly cloudy. Seas 2 to 4 ft.
Friday
SSE wind 16 to 18 kt. Mostly sunny. Seas 5 ft subsiding to 2 ft.
Friday Night
SSE wind 14 to 16 kt. Mostly cloudy. Seas 2 to 4 ft.
Saturday
SSE wind 14 to 16 kt. Partly sunny. Seas around 2 ft.
Saturday Night
SE wind 9 to 14 kt. A slight chance of showers and thunderstorms after midnight. Seas 2 to 4 ft.
Sunday
SE wind 9 to 12 kt. A chance of showers. 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.
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ABOUT THIS FORECAST

Point Forecast: 26.11°N 97.16°W
Last Update: 5:21 pm CST Mar 4, 2026
Forecast Valid: 5pm CST Mar 4, 2026-6pm CDT Mar 11, 2026
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