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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:NNW wind around 12 kt. Mostly cloudy. Seas 3 to 4 ft.

      Low: 59 °F

      NNW 12kt
      3-4ft

    • Monday

      Monday:NNW wind around 13 kt becoming NNE in the afternoon. Partly sunny. Seas 2 to 3 ft.

      High: 65 °F

      N 13kt
      2-3ft

    • Monday Night

      Monday Night:NNE wind 7 to 11 kt. A slight chance of showers before 1am.   Seas 2 to 3 ft.

      Low: 62 °F

      NNE 11kt
      2-3ft

    • Tuesday

      Tuesday:NNE wind 8 to 10 kt. Partly sunny. Seas 2 to 3 ft.

      High: 65 °F

      NNE 10kt
      2-3ft

    • Tuesday Night

      Tuesday Night:NE wind 5 to 8 kt becoming NW after midnight. A slight chance of showers after midnight.   Seas 1 to 2 ft.

      Low: 59 °F

      NE 8kt
      1-2ft

    • Wednesday

      Wednesday:NW wind 9 to 11 kt. Mostly sunny. Seas 1 to 2 ft.

      High: 69 °F

      NW 11kt
      1-2ft

    • Wednesday Night

      Wednesday Night:N wind 9 to 16 kt. Mostly clear. Seas 1 to 2 ft.

      Low: 58 °F

      N 16kt
      1-2ft

    • Thursday

      Thursday:N wind 10 to 16 kt becoming NE in the afternoon. Sunny. Seas 2 to 3 ft.

      High: 65 °F

      N 16kt
      2-3ft

    • Thursday Night

      Thursday Night:ENE wind 7 to 9 kt becoming SSE after midnight. Mostly clear. Seas 1 to 2 ft.

      Low: 60 °F

      ENE 9kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:00 pm CST Jan 11, 2026
Forecast Valid: 11pm CST Jan 11, 2026-6pm CST Jan 18, 2026

View Nearby Observations

Detailed Forecast


Overnight
NNW wind around 12 kt. Mostly cloudy. Seas 3 to 4 ft.
Monday
NNW wind around 13 kt becoming NNE in the afternoon. Partly sunny. Seas 2 to 3 ft.
Monday Night
NNE wind 7 to 11 kt. A slight chance of showers before 1am. Seas 2 to 3 ft.
Tuesday
NNE wind 8 to 10 kt. Partly sunny. Seas 2 to 3 ft.
Tuesday Night
NE wind 5 to 8 kt becoming NW after midnight. A slight chance of showers after midnight. Seas 1 to 2 ft.
Wednesday
NW wind 9 to 11 kt. Mostly sunny. Seas 1 to 2 ft.
Wednesday Night
N wind 9 to 16 kt. Mostly clear. Seas 1 to 2 ft.
Thursday
N wind 10 to 16 kt becoming NE in the afternoon. Sunny. Seas 2 to 3 ft.
Thursday Night
ENE wind 7 to 9 kt becoming SSE after midnight. Mostly clear. 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: 11:00 pm CST Jan 11, 2026
Forecast Valid: 11pm CST Jan 11, 2026-6pm CST Jan 18, 2026
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