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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:ENE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

      Low: 71 °F

      ENE 10kt⇓
      < 1ft

    • Wednesday

      Wednesday:Variable winds less than 5 kt becoming ENE 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

      High: 80 °F

      ⇑ENE 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:E wind 5 to 10 kt becoming S after midnight. Partly cloudy. Seas 1 ft or less.

      Low: 72 °F

      E 10kt
      < 1ft

    • Thursday

      Thursday:SE wind 5 to 15 kt. Partly sunny, then gradually becoming sunny. Seas 1 ft or less.

      High: 82 °F

      SE 15kt
      < 1ft

    • Thursday Night

      Thursday Night:SE wind 13 to 15 kt. Partly cloudy. Seas 1 ft or less.

      Low: 76 °F

      SE 15kt
      < 1ft

    • Friday

      Friday:SSE wind 13 to 18 kt. Mostly sunny. Seas 1 ft or less.

      High: 83 °F

      SSE 18kt
      < 1ft

    • Friday Night

      Friday Night:SE wind 15 to 17 kt. Partly cloudy. Seas 1 ft or less.

      Low: 78 °F

      SE 17kt
      < 1ft

    • Saturday

      Saturday:SSE wind 15 to 19 kt. Partly sunny. Seas 1 ft or less.

      High: 86 °F

      SSE 19kt
      < 1ft

    • Saturday Night

      Saturday Night:SE wind around 17 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 1 ft or less.

      Low: 80 °F

      SE 17kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:45 pm CDT May 12, 2026
Forecast Valid: 7pm CDT May 12, 2026-6pm CDT May 19, 2026

View Nearby Observations

Detailed Forecast


Tonight
ENE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.
Wednesday
Variable winds less than 5 kt becoming ENE 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.
Wednesday Night
E wind 5 to 10 kt becoming S after midnight. Partly cloudy. Seas 1 ft or less.
Thursday
SE wind 5 to 15 kt. Partly sunny, then gradually becoming sunny. Seas 1 ft or less.
Thursday Night
SE wind 13 to 15 kt. Partly cloudy. Seas 1 ft or less.
Friday
SSE wind 13 to 18 kt. Mostly sunny. Seas 1 ft or less.
Friday Night
SE wind 15 to 17 kt. Partly cloudy. Seas 1 ft or less.
Saturday
SSE wind 15 to 19 kt. Partly sunny. Seas 1 ft or less.
Saturday Night
SE wind around 17 kt, with gusts as high as 23 kt. Mostly 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: 7:45 pm CDT May 12, 2026
Forecast Valid: 7pm CDT May 12, 2026-6pm CDT May 19, 2026
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