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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SE wind around 17 kt. Partly sunny. Seas around 2 ft.

      High: 80 °F

      SE 17kt
      2ft

    • Tonight

      Tonight:SE wind 11 to 13 kt. Mostly cloudy. Seas around 2 ft.

      Low: 74 °F

      SE 13kt
      2ft

    • Thursday

      Thursday:SSE wind 10 to 16 kt. Mostly cloudy, then gradually becoming sunny. Seas around 2 ft.

      High: 81 °F

      SSE 16kt
      2ft

    • Thursday Night

      Thursday Night:SE wind 12 to 14 kt. Partly cloudy. Seas around 2 ft.

      Low: 74 °F

      SE 14kt
      2ft

    • Friday

      Friday:SSE wind 12 to 19 kt. Mostly sunny. Seas around 2 ft.

      High: 80 °F

      SSE 19kt
      2ft

    • Friday Night

      Friday Night:SE wind around 17 kt. Mostly cloudy. Seas around 2 ft.

      Low: 74 °F

      SE 17kt
      2ft

    • Saturday

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

      High: 81 °F

      SSE 16kt
      2ft

    • Saturday Night

      Saturday Night:ESE wind 8 to 12 kt becoming NE after midnight. A slight chance of showers, then a chance of showers and thunderstorms after 1am.   Seas 1 to 2 ft.

      Low: 71 °F

      ESE 12kt
      1-2ft

    • Sunday

      Sunday:NE wind 16 to 21 kt. Showers likely and possibly a thunderstorm.   Seas 2 to 3 ft.

      High: 74 °F

      NE 21kt
      2-3ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:45 pm CDT Apr 15, 2026
Forecast Valid: 3pm CDT Apr 15, 2026-6pm CDT Apr 21, 2026

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Detailed Forecast


This Afternoon
SE wind around 17 kt. Partly sunny. Seas around 2 ft.
Tonight
SE wind 11 to 13 kt. Mostly cloudy. Seas around 2 ft.
Thursday
SSE wind 10 to 16 kt. Mostly cloudy, then gradually becoming sunny. Seas around 2 ft.
Thursday Night
SE wind 12 to 14 kt. Partly cloudy. Seas around 2 ft.
Friday
SSE wind 12 to 19 kt. Mostly sunny. Seas around 2 ft.
Friday Night
SE wind around 17 kt. Mostly cloudy. Seas around 2 ft.
Saturday
SSE wind around 16 kt. Mostly cloudy. Seas around 2 ft.
Saturday Night
ESE wind 8 to 12 kt becoming NE after midnight. A slight chance of showers, then a chance of showers and thunderstorms after 1am. Seas 1 to 2 ft.
Sunday
NE wind 16 to 21 kt. Showers likely and possibly a thunderstorm. Seas 2 to 3 ft.

Winds and waves 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: 26.15°N 97.29°W
Last Update: 3:45 pm CDT Apr 15, 2026
Forecast Valid: 3pm CDT Apr 15, 2026-6pm CDT Apr 21, 2026
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