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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SE wind around 13 kt. Mostly sunny. Seas around 2 ft.

      High: 86 °F

      SE 13kt
      2ft

    • Tonight

      Tonight:S wind 9 to 13 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 80 °F

      S 13kt
      1-2ft

    • Thursday

      Thursday:SE wind 8 to 13 kt. A chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm.   Seas 1 to 2 ft.

      High: 85 °F

      SE 13kt
      1-2ft

    • Thursday Night

      Thursday Night:SSE wind 12 to 14 kt. A chance of showers and thunderstorms, mainly after 2am.   Seas around 2 ft.

      Low: 81 °F

      SSE 14kt
      2ft

    • Friday

      Friday:SE wind 12 to 14 kt. A chance of showers and thunderstorms before 1pm.   Seas around 2 ft.

      High: 85 °F

      SE 14kt
      2ft

    • Friday Night

      Friday Night:SE wind around 13 kt. A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am.   Seas around 2 ft.

      Low: 82 °F

      SE 13kt
      2ft

    • Saturday

      Saturday:SE wind 13 to 15 kt. A chance of showers and thunderstorms, mainly before 1pm.   Seas 2 to 3 ft.

      High: 86 °F

      SE 15kt
      2-3ft

    • Saturday Night

      Saturday Night:SSE wind 11 to 13 kt. Mostly clear. Seas 2 to 3 ft.

      Low: 82 °F

      SSE 13kt
      2-3ft

    • Sunday

      Sunday:SE wind 11 to 13 kt. Mostly sunny. Seas around 2 ft.

      High: 86 °F

      SE 13kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:45 pm CDT Jul 8, 2026
Forecast Valid: 5pm CDT Jul 8, 2026-6pm CDT Jul 15, 2026

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Detailed Forecast


This Afternoon
SE wind around 13 kt. Mostly sunny. Seas around 2 ft.
Tonight
S wind 9 to 13 kt. Partly cloudy. Seas 1 to 2 ft.
Thursday
SE wind 8 to 13 kt. A chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 4pm, then a slight chance of showers after 4pm. Seas 1 to 2 ft.
Thursday Night
SSE wind 12 to 14 kt. A chance of showers and thunderstorms, mainly after 2am. Seas around 2 ft.
Friday
SE wind 12 to 14 kt. A chance of showers and thunderstorms before 1pm. Seas around 2 ft.
Friday Night
SE wind around 13 kt. A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Seas around 2 ft.
Saturday
SE wind 13 to 15 kt. A chance of showers and thunderstorms, mainly before 1pm. Seas 2 to 3 ft.
Saturday Night
SSE wind 11 to 13 kt. Mostly clear. Seas 2 to 3 ft.
Sunday
SE wind 11 to 13 kt. Mostly sunny. Seas around 2 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: 5:45 pm CDT Jul 8, 2026
Forecast Valid: 5pm CDT Jul 8, 2026-6pm CDT Jul 15, 2026
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