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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. Sunny. Seas 1 ft or less.

      High: 88 °F

      SE 17kt
      < 1ft

    • Tonight

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

      Low: 81 °F

      SSE 15kt
      < 1ft

    • Sunday

      Sunday:SE wind 11 to 17 kt. Mostly sunny. Seas 1 ft or less.

      High: 88 °F

      SE 17kt
      < 1ft

    • Sunday Night

      Sunday Night:SSE wind 11 to 16 kt. Partly cloudy. Seas 1 ft or less.

      Low: 79 °F

      SSE 16kt
      < 1ft

    • Monday

      Monday:S wind 10 to 17 kt. Partly sunny, then gradually becoming sunny. Seas 1 ft or less.

      High: 89 °F

      S 17kt
      < 1ft

    • Monday Night

      Monday Night:SE wind 10 to 15 kt. Mostly clear. Seas 1 ft or less.

      Low: 79 °F

      SE 15kt
      < 1ft

    • Tuesday

      Tuesday:SE wind 8 to 15 kt. Sunny. Seas 1 ft or less.

      High: 88 °F

      SE 15kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SE wind 7 to 14 kt. Mostly clear. Seas 1 ft or less.

      Low: 79 °F

      SE 14kt
      < 1ft

    • Wednesday

      Wednesday:SE wind 5 to 14 kt. Sunny. Seas 1 ft or less.

      High: 91 °F

      SE 14kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:18 pm CDT Jul 18, 2026
Forecast Valid: 4pm CDT Jul 18, 2026-6pm CDT Jul 24, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SE wind around 17 kt. Sunny. Seas 1 ft or less.
Tonight
SSE wind 12 to 15 kt. Partly cloudy. Seas 1 ft or less.
Sunday
SE wind 11 to 17 kt. Mostly sunny. Seas 1 ft or less.
Sunday Night
SSE wind 11 to 16 kt. Partly cloudy. Seas 1 ft or less.
Monday
S wind 10 to 17 kt. Partly sunny, then gradually becoming sunny. Seas 1 ft or less.
Monday Night
SE wind 10 to 15 kt. Mostly clear. Seas 1 ft or less.
Tuesday
SE wind 8 to 15 kt. Sunny. Seas 1 ft or less.
Tuesday Night
SE wind 7 to 14 kt. Mostly clear. Seas 1 ft or less.
Wednesday
SE wind 5 to 14 kt. Sunny. Seas 1 ft or less.

*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: 4:18 pm CDT Jul 18, 2026
Forecast Valid: 4pm CDT Jul 18, 2026-6pm CDT Jul 24, 2026
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