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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 23 kt. Partly sunny. Seas around 3 ft.

      High: 61 °F

      N 23kt
      3ft

    • Tonight

      Tonight:N wind 16 to 21 kt. A slight chance of showers between 8pm and 10pm.   Seas 3 to 4 ft.

      Low: 54 °F

      N 21kt
      3-4ft

    • Saturday

      Saturday:NNE wind 16 to 19 kt. Sunny. Seas 3 to 5 ft.

      High: 58 °F

      NNE 19kt
      3-5ft

    • Saturday Night

      Saturday Night:NNE wind 8 to 15 kt becoming E after midnight. Partly cloudy. Seas 2 to 3 ft.

      Low: 53 °F

      NNE 15kt
      2-3ft

    • Sunday

      Sunday:E wind 8 to 10 kt. Increasing clouds. Seas 2 to 3 ft.

      High: 63 °F

      E 10kt
      2-3ft

    • Sunday Night

      Sunday Night:SSE wind around 9 kt. Mostly cloudy. Seas 1 to 2 ft.

      Low: 60 °F

      SSE 9kt
      1-2ft

    • Monday

      Monday:SSE wind 9 to 16 kt. Partly sunny. Seas 2 to 3 ft.

      High: 67 °F

      SSE 16kt
      2-3ft

    • Monday Night

      Monday Night:SSE wind around 16 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 65 °F

      SSE 16kt
      2-3ft

    • Tuesday

      Tuesday:S wind 13 to 16 kt. Partly sunny. Seas around 3 ft.

      High: 70 °F

      S 16kt
      3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:45 pm CST Jan 30, 2026
Forecast Valid: 2pm CST Jan 30, 2026-6pm CST Feb 5, 2026

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Detailed Forecast


This Afternoon
N wind around 23 kt. Partly sunny. Seas around 3 ft.
Tonight
N wind 16 to 21 kt. A slight chance of showers between 8pm and 10pm. Seas 3 to 4 ft.
Saturday
NNE wind 16 to 19 kt. Sunny. Seas 3 to 5 ft.
Saturday Night
NNE wind 8 to 15 kt becoming E after midnight. Partly cloudy. Seas 2 to 3 ft.
Sunday
E wind 8 to 10 kt. Increasing clouds. Seas 2 to 3 ft.
Sunday Night
SSE wind around 9 kt. Mostly cloudy. Seas 1 to 2 ft.
Monday
SSE wind 9 to 16 kt. Partly sunny. Seas 2 to 3 ft.
Monday Night
SSE wind around 16 kt. Mostly cloudy. Seas 2 to 3 ft.
Tuesday
S wind 13 to 16 kt. Partly sunny. Seas around 3 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: 2:45 pm CST Jan 30, 2026
Forecast Valid: 2pm CST Jan 30, 2026-6pm CST Feb 5, 2026
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