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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Thanksgiving Day

      Thanksgiving Day:NE wind 13 to 17 kt. Mostly sunny. Seas 1 ft or less.

      High: 76 °F

      NE 17kt
      < 1ft

    • Tonight

      Tonight:E wind 12 to 15 kt. Partly cloudy. Seas 1 ft or less.

      Low: 70 °F

      E 15kt
      < 1ft

    • Friday

      Friday:E wind 12 to 19 kt. A slight chance of showers after noon.   Seas 1 ft or less.

      High: 76 °F

      E 19kt
      < 1ft

    • Friday Night

      Friday Night:SSE wind 16 to 20 kt. A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms between 9pm and midnight.   Seas 1 ft or less.

      Low: 72 °F

      SSE 20kt
      < 1ft

    • Saturday

      Saturday:S wind 18 to 22 kt. Partly sunny. Seas 1 ft or less.

      High: 80 °F

      S 22kt
      < 1ft

    • Saturday Night

      Saturday Night:S wind 11 to 16 kt becoming NW after midnight. A chance of showers and thunderstorms after midnight.   Seas 1 ft or less.

      Low: 67 °F

      S 16kt
      < 1ft

    • Sunday

      Sunday:N wind 11 to 17 kt. A chance of showers and thunderstorms.   Seas 1 ft or less.

      High: 72 °F

      N 17kt
      < 1ft

    • Sunday Night

      Sunday Night:N wind 13 to 15 kt. A chance of showers.   Seas 1 ft or less.

      Low: 58 °F

      N 15kt
      < 1ft

    • Monday

      Monday:NNW wind 12 to 14 kt. A chance of showers.   Seas 1 ft or less.

      High: 64 °F

      NNW 14kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:30 am CST Nov 27, 2025
Forecast Valid: 10am CST Nov 27, 2025-6pm CST Dec 3, 2025

View Nearby Observations

Detailed Forecast


Thanksgiving Day
NE wind 13 to 17 kt. Mostly sunny. Seas 1 ft or less.
Tonight
E wind 12 to 15 kt. Partly cloudy. Seas 1 ft or less.
Friday
E wind 12 to 19 kt. A slight chance of showers after noon. Seas 1 ft or less.
Friday Night
SSE wind 16 to 20 kt. A slight chance of showers before 9pm, then a slight chance of showers and thunderstorms between 9pm and midnight. Seas 1 ft or less.
Saturday
S wind 18 to 22 kt. Partly sunny. Seas 1 ft or less.
Saturday Night
S wind 11 to 16 kt becoming NW after midnight. A chance of showers and thunderstorms after midnight. Seas 1 ft or less.
Sunday
N wind 11 to 17 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Sunday Night
N wind 13 to 15 kt. A chance of showers. Seas 1 ft or less.
Monday
NNW wind 12 to 14 kt. A chance of showers. 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: 10:30 am CST Nov 27, 2025
Forecast Valid: 10am CST Nov 27, 2025-6pm CST Dec 3, 2025
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