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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:S wind around 16 kt, with gusts as high as 22 kt. Partly cloudy. Seas 1 ft or less.

      Low: 68 °F

      S 16kt
      < 1ft

    • Thursday

      Thursday:S wind 14 to 16 kt. Mostly sunny. Seas 1 ft or less.

      High: 81 °F

      S 16kt
      < 1ft

    • Thursday Night

      Thursday Night:SSE wind 8 to 13 kt. Partly cloudy. Seas 1 ft or less.

      Low: 68 °F

      SSE 13kt
      < 1ft

    • Friday

      Friday:SSE wind 8 to 13 kt. Sunny. Seas 1 ft or less.

      High: 80 °F

      SSE 13kt
      < 1ft

    • Friday Night

      Friday Night:SSE wind 7 to 12 kt. Mostly clear. Seas 1 ft or less.

      Low: 67 °F

      SSE 12kt
      < 1ft

    • Saturday

      Saturday:SSE wind 5 to 12 kt becoming ENE in the afternoon. Mostly sunny. Seas 1 ft or less.

      High: 79 °F

      ENE 12kt
      < 1ft

    • Saturday Night

      Saturday Night:N wind 11 to 19 kt. Partly cloudy. Seas 1 ft or less.

      Low: 62 °F

      N 19kt
      < 1ft

    • Sunday

      Sunday:NNE wind 19 to 22 kt. Mostly sunny. Seas 1 ft or less.

      High: 67 °F

      NNE 22kt
      < 1ft

    • Sunday Night

      Sunday Night:NE wind 11 to 18 kt. Partly cloudy. Seas 1 ft or less.

      Low: 58 °F

      NE 18kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:45 pm CST Feb 18, 2026
Forecast Valid: 6pm CST Feb 18, 2026-6pm CST Feb 25, 2026

View Nearby Observations

Detailed Forecast


Tonight
S wind around 16 kt, with gusts as high as 22 kt. Partly cloudy. Seas 1 ft or less.
Thursday
S wind 14 to 16 kt. Mostly sunny. Seas 1 ft or less.
Thursday Night
SSE wind 8 to 13 kt. Partly cloudy. Seas 1 ft or less.
Friday
SSE wind 8 to 13 kt. Sunny. Seas 1 ft or less.
Friday Night
SSE wind 7 to 12 kt. Mostly clear. Seas 1 ft or less.
Saturday
SSE wind 5 to 12 kt becoming ENE in the afternoon. Mostly sunny. Seas 1 ft or less.
Saturday Night
N wind 11 to 19 kt. Partly cloudy. Seas 1 ft or less.
Sunday
NNE wind 19 to 22 kt. Mostly sunny. Seas 1 ft or less.
Sunday Night
NE wind 11 to 18 kt. Partly cloudy. 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: 6:45 pm CST Feb 18, 2026
Forecast Valid: 6pm CST Feb 18, 2026-6pm CST Feb 25, 2026
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