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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Wednesday

      Wednesday:SE wind 15 to 18 kt. Mostly cloudy. Seas 2 to 4 ft.

      High: 78 °F

      SE 18kt
      2-4ft

    • Wednesday Night

      Wednesday Night:SSE wind around 13 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 75 °F

      SSE 13kt
      2-3ft

    • Thursday

      Thursday:SE wind 12 to 16 kt. Partly sunny. Seas around 2 ft.

      High: 78 °F

      SE 16kt
      2ft

    • Thursday Night

      Thursday Night:SE wind around 15 kt. Partly cloudy. Seas 2 to 3 ft.

      Low: 75 °F

      SE 15kt
      2-3ft

    • Friday

      Friday:SSE wind 15 to 19 kt, with gusts as high as 25 kt. Mostly sunny. Seas around 2 ft.

      High: 78 °F

      SSE 19kt
      2ft

    • Friday Night

      Friday Night:SE wind around 18 kt. Mostly cloudy. Seas 2 to 4 ft.

      Low: 75 °F

      SE 18kt
      2-4ft

    • Saturday

      Saturday:SSE wind 14 to 16 kt. Mostly cloudy. Seas around 2 ft.

      High: 78 °F

      SSE 16kt
      2ft

    • Saturday Night

      Saturday Night:ESE wind 11 to 17 kt becoming NE after midnight. A slight chance of showers, then a chance of showers and thunderstorms after 1am.   Seas 2 to 3 ft.

      Low: 71 °F

      NE 17kt
      2-3ft

    • Sunday

      Sunday:NE wind 22 to 25 kt. Showers likely and possibly a thunderstorm.   Seas 3 to 4 ft.

      High: 73 °F

      NE 25kt
      3-4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 2:00 am CDT Apr 15, 2026
Forecast Valid: 2am CDT Apr 15, 2026-6pm CDT Apr 21, 2026

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Detailed Forecast


Wednesday
SE wind 15 to 18 kt. Mostly cloudy. Seas 2 to 4 ft.
Wednesday Night
SSE wind around 13 kt. Mostly cloudy. Seas 2 to 3 ft.
Thursday
SE wind 12 to 16 kt. Partly sunny. Seas around 2 ft.
Thursday Night
SE wind around 15 kt. Partly cloudy. Seas 2 to 3 ft.
Friday
SSE wind 15 to 19 kt, with gusts as high as 25 kt. Mostly sunny. Seas around 2 ft.
Friday Night
SE wind around 18 kt. Mostly cloudy. Seas 2 to 4 ft.
Saturday
SSE wind 14 to 16 kt. Mostly cloudy. Seas around 2 ft.
Saturday Night
ESE wind 11 to 17 kt becoming NE after midnight. A slight chance of showers, then a chance of showers and thunderstorms after 1am. Seas 2 to 3 ft.
Sunday
NE wind 22 to 25 kt. Showers likely and possibly a thunderstorm. Seas 3 to 4 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: 2:00 am CDT Apr 15, 2026
Forecast Valid: 2am CDT Apr 15, 2026-6pm CDT Apr 21, 2026
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