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Brownsville, TX Local Forecast Office

4NM NE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SSE wind 8 to 10 kt. Mostly clear. Seas 1 ft or less.

      Low: 81 °F

      SSE 10kt
      < 1ft

    • Friday

      Friday:S wind 5 to 12 kt becoming ESE in the morning. Sunny. Seas 1 ft or less.

      High: 86 °F

      ESE 12kt
      < 1ft

    • Friday Night

      Friday Night:SE wind 5 to 11 kt becoming S after midnight. Mostly clear. Seas 1 ft or less.

      Low: 81 °F

      SE 11kt
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming ESE 6 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.

      High: 86 °F

      ⇑ESE 11kt
      < 1ft

    • Saturday Night

      Saturday Night:ESE wind 7 to 10 kt becoming S after midnight. Mostly clear. Seas 1 ft or less.

      Low: 81 °F

      ESE 10kt
      < 1ft

    • Sunday

      Sunday:SE wind 6 to 13 kt. Sunny. Seas 1 ft or less.

      High: 86 °F

      SE 13kt
      < 1ft

    • Sunday Night

      Sunday Night:SE wind 10 to 12 kt. Mostly clear. Seas 1 ft or less.

      Low: 82 °F

      SE 12kt
      < 1ft

    • Monday

      Monday:SE wind 9 to 15 kt. Sunny. Seas 1 ft or less.

      High: 86 °F

      SE 15kt
      < 1ft

    • Monday Night

      Monday Night:SE wind 9 to 13 kt. Mostly clear. Seas 1 ft or less.

      Low: 82 °F

      SE 13kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:18 pm CDT Aug 27, 2026
Forecast Valid: 9pm CDT Aug 27, 2026-6pm CDT Sep 3, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSE wind 8 to 10 kt. Mostly clear. Seas 1 ft or less.
Friday
S wind 5 to 12 kt becoming ESE in the morning. Sunny. Seas 1 ft or less.
Friday Night
SE wind 5 to 11 kt becoming S after midnight. Mostly clear. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming ESE 6 to 11 kt in the afternoon. Sunny. Seas 1 ft or less.
Saturday Night
ESE wind 7 to 10 kt becoming S after midnight. Mostly clear. Seas 1 ft or less.
Sunday
SE wind 6 to 13 kt. Sunny. Seas 1 ft or less.
Sunday Night
SE wind 10 to 12 kt. Mostly clear. Seas 1 ft or less.
Monday
SE wind 9 to 15 kt. Sunny. Seas 1 ft or less.
Monday Night
SE wind 9 to 13 kt. Mostly clear. 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: 26.13°N 97.19°W
Last Update: 9:18 pm CDT Aug 27, 2026
Forecast Valid: 9pm CDT Aug 27, 2026-6pm CDT Sep 3, 2026
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