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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SSE wind around 10 kt. A chance of showers and thunderstorms after 1am.   Seas 1 ft or less.

      Low: 79 °F

      SSE 10kt
      < 1ft

    • Friday

      Friday:SE wind 9 to 15 kt. A chance of showers and thunderstorms, mainly between 8am and 1pm.   Seas 1 ft or less.

      High: 86 °F

      SE 15kt
      < 1ft

    • Friday Night

      Friday Night:SE wind 10 to 13 kt. A slight chance of showers and thunderstorms between 1am and 3am.   Seas 1 ft or less.

      Low: 82 °F

      SE 13kt
      < 1ft

    • Saturday

      Saturday:SE wind 10 to 15 kt. Sunny. Seas 1 ft or less.

      High: 87 °F

      SE 15kt
      < 1ft

    • Saturday Night

      Saturday Night:SE wind 9 to 13 kt. Partly cloudy. Seas 1 ft or less.

      Low: 82 °F

      SE 13kt
      < 1ft

    • Sunday

      Sunday:SE wind 8 to 15 kt. Mostly sunny. Seas 1 ft or less.

      High: 88 °F

      SE 15kt
      < 1ft

    • Sunday Night

      Sunday Night:SE wind 9 to 13 kt. Partly cloudy. Seas 1 ft or less.

      Low: 81 °F

      SE 13kt
      < 1ft

    • Monday

      Monday:SSE wind 8 to 15 kt. Mostly sunny. Seas 1 ft or less.

      High: 88 °F

      SSE 15kt
      < 1ft

    • Monday Night

      Monday Night:SSE wind 9 to 14 kt. Partly cloudy. Seas 1 ft or less.

      Low: 81 °F

      SSE 14kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:45 pm CDT Jul 9, 2026
Forecast Valid: 10pm CDT Jul 9, 2026-6pm CDT Jul 16, 2026

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Detailed Forecast


Tonight
SSE wind around 10 kt. A chance of showers and thunderstorms after 1am. Seas 1 ft or less.
Friday
SE wind 9 to 15 kt. A chance of showers and thunderstorms, mainly between 8am and 1pm. Seas 1 ft or less.
Friday Night
SE wind 10 to 13 kt. A slight chance of showers and thunderstorms between 1am and 3am. Seas 1 ft or less.
Saturday
SE wind 10 to 15 kt. Sunny. Seas 1 ft or less.
Saturday Night
SE wind 9 to 13 kt. Partly cloudy. Seas 1 ft or less.
Sunday
SE wind 8 to 15 kt. Mostly sunny. Seas 1 ft or less.
Sunday Night
SE wind 9 to 13 kt. Partly cloudy. Seas 1 ft or less.
Monday
SSE wind 8 to 15 kt. Mostly sunny. Seas 1 ft or less.
Monday Night
SSE wind 9 to 14 kt. Partly cloudy. Seas 1 ft or less.

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: 9:45 pm CDT Jul 9, 2026
Forecast Valid: 10pm CDT Jul 9, 2026-6pm CDT Jul 16, 2026
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