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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:N wind around 20 kt. Partly sunny. Seas around 4 ft.

      High: 49 °F

      N 20kt
      4ft

    • Tonight

      Tonight:NNW wind 20 to 23 kt. Mostly cloudy. Seas 4 to 6 ft.

      Low: 40 °F

      NNW 23kt
      4-6ft

    • Monday

      Monday:NNW wind 19 to 23 kt. Mostly cloudy. Seas 6 ft subsiding to 3 ft.

      High: 49 °F

      NNW 23kt
      6ftWaves Subsiding

    • Monday Night

      Monday Night:N wind 11 to 18 kt. Mostly cloudy. Seas 3 to 5 ft.

      Low: 45 °F

      N 18kt
      3-5ft

    • Tuesday

      Tuesday:N wind 8 to 11 kt becoming E in the afternoon. Mostly sunny. Seas 1 to 3 ft.

      High: 59 °F

      N 11kt
      1-3ft

    • Tuesday Night

      Tuesday Night:E wind 6 to 8 kt becoming NNE after midnight. Mostly cloudy. Seas 1 to 2 ft.

      Low: 56 °F

      NNE 8kt
      1-2ft

    • Wednesday

      Wednesday:N wind 9 to 14 kt. A slight chance of showers before noon.   Seas 1 to 2 ft.

      High: 61 °F

      N 14kt
      1-2ft

    • Wednesday Night

      Wednesday Night:NNE wind 9 to 12 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 56 °F

      NNE 12kt
      1-2ft

    • Thursday

      Thursday:ENE wind 9 to 11 kt becoming ESE in the afternoon. Partly sunny. Seas 1 to 2 ft.

      High: 65 °F

      ESE 11kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:45 pm CST Jan 25, 2026
Forecast Valid: 5pm CST Jan 25, 2026-6pm CST Feb 1, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
N wind around 20 kt. Partly sunny. Seas around 4 ft.
Tonight
NNW wind 20 to 23 kt. Mostly cloudy. Seas 4 to 6 ft.
Monday
NNW wind 19 to 23 kt. Mostly cloudy. Seas 6 ft subsiding to 3 ft.
Monday Night
N wind 11 to 18 kt. Mostly cloudy. Seas 3 to 5 ft.
Tuesday
N wind 8 to 11 kt becoming E in the afternoon. Mostly sunny. Seas 1 to 3 ft.
Tuesday Night
E wind 6 to 8 kt becoming NNE after midnight. Mostly cloudy. Seas 1 to 2 ft.
Wednesday
N wind 9 to 14 kt. A slight chance of showers before noon. Seas 1 to 2 ft.
Wednesday Night
NNE wind 9 to 12 kt. Partly cloudy. Seas 1 to 2 ft.
Thursday
ENE wind 9 to 11 kt becoming ESE in the afternoon. Partly sunny. Seas 1 to 2 ft.

*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: 5:45 pm CST Jan 25, 2026
Forecast Valid: 5pm CST Jan 25, 2026-6pm CST Feb 1, 2026
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