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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:NNE wind around 11 kt. Cloudy. Seas around 2 ft.

      High: 66 °F

      NNE 11kt
      2ft

    • Tonight

      Tonight:NNE wind 6 to 10 kt. A slight chance of showers between 11pm and 2am.   Seas 2 to 3 ft.

      Low: 63 °F

      NNE 10kt
      2-3ft

    • Tuesday

      Tuesday:NNE wind around 9 kt. Mostly cloudy. Seas around 2 ft.

      High: 66 °F

      NNE 9kt
      2ft

    • Tuesday Night

      Tuesday Night:NNE wind 5 to 7 kt becoming WNW after midnight. Mostly cloudy. Seas 1 to 2 ft.

      Low: 59 °F

      NNE 7kt
      1-2ft

    • Wednesday

      Wednesday:NW wind 8 to 12 kt. Partly sunny. Seas 1 to 2 ft.

      High: 71 °F

      NW 12kt
      1-2ft

    • Wednesday Night

      Wednesday Night:N wind 11 to 20 kt. Mostly clear. Seas 1 ft building to 4 ft.

      Low: 60 °F

      N 20kt
      Waves Building4ft

    • Thursday

      Thursday:N wind 10 to 19 kt. Sunny. Seas 2 to 4 ft.

      High: 63 °F

      N 19kt
      2-4ft

    • Thursday Night

      Thursday Night:NE wind 5 to 9 kt becoming SSE after midnight. Mostly clear. Seas 1 to 2 ft.

      Low: 58 °F

      NE 9kt
      1-2ft

    • Friday

      Friday:SSE wind 7 to 10 kt. Sunny. Seas 1 to 2 ft.

      High: 68 °F

      SSE 10kt
      1-2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:00 pm CST Jan 12, 2026
Forecast Valid: 5pm CST Jan 12, 2026-6pm CST Jan 19, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
NNE wind around 11 kt. Cloudy. Seas around 2 ft.
Tonight
NNE wind 6 to 10 kt. A slight chance of showers between 11pm and 2am. Seas 2 to 3 ft.
Tuesday
NNE wind around 9 kt. Mostly cloudy. Seas around 2 ft.
Tuesday Night
NNE wind 5 to 7 kt becoming WNW after midnight. Mostly cloudy. Seas 1 to 2 ft.
Wednesday
NW wind 8 to 12 kt. Partly sunny. Seas 1 to 2 ft.
Wednesday Night
N wind 11 to 20 kt. Mostly clear. Seas 1 ft building to 4 ft.
Thursday
N wind 10 to 19 kt. Sunny. Seas 2 to 4 ft.
Thursday Night
NE wind 5 to 9 kt becoming SSE after midnight. Mostly clear. Seas 1 to 2 ft.
Friday
SSE wind 7 to 10 kt. 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: 5:00 pm CST Jan 12, 2026
Forecast Valid: 5pm CST Jan 12, 2026-6pm CST Jan 19, 2026
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