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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:S wind 15 to 19 kt. Sunny. Seas 1 ft or less.

      High: 92 °F

      S 19kt
      < 1ft

    • Tonight

      Tonight:SSE wind 16 to 19 kt, with gusts as high as 25 kt. Increasing clouds. Seas 1 ft or less.

      Low: 86 °F

      SSE 19kt
      < 1ft

    • Juneteenth

      Juneteenth:SSE wind 15 to 17 kt. Mostly sunny. Seas 1 ft or less.

      High: 89 °F

      SSE 17kt
      < 1ft

    • Friday Night

      Friday Night:SE wind 12 to 16 kt. Increasing clouds. Seas 1 ft or less.

      Low: 85 °F

      SE 16kt
      < 1ft

    • Saturday

      Saturday:SSE wind 13 to 15 kt. Partly sunny. Seas 1 ft or less.

      High: 88 °F

      SSE 15kt
      < 1ft

    • Saturday Night

      Saturday Night:SSE wind around 15 kt. Mostly cloudy. Seas 1 ft or less.

      Low: 84 °F

      SSE 15kt
      < 1ft

    • Sunday

      Sunday:SSE wind 16 to 19 kt. Mostly sunny. Seas 1 ft or less.

      High: 88 °F

      SSE 19kt
      < 1ft

    • Sunday Night

      Sunday Night:SSE wind around 18 kt, with gusts as high as 24 kt. Partly cloudy. Seas 1 ft or less.

      Low: 83 °F

      SSE 18kt
      < 1ft

    • Monday

      Monday:SSE wind around 18 kt, with gusts as high as 24 kt. Sunny. Seas 1 ft or less.

      High: 87 °F

      SSE 18kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:21 am CDT Jun 18, 2026
Forecast Valid: 6am CDT Jun 18, 2026-6pm CDT Jun 24, 2026

View Nearby Observations

Detailed Forecast


Today
S wind 15 to 19 kt. Sunny. Seas 1 ft or less.
Tonight
SSE wind 16 to 19 kt, with gusts as high as 25 kt. Increasing clouds. Seas 1 ft or less.
Juneteenth
SSE wind 15 to 17 kt. Mostly sunny. Seas 1 ft or less.
Friday Night
SE wind 12 to 16 kt. Increasing clouds. Seas 1 ft or less.
Saturday
SSE wind 13 to 15 kt. Partly sunny. Seas 1 ft or less.
Saturday Night
SSE wind around 15 kt. Mostly cloudy. Seas 1 ft or less.
Sunday
SSE wind 16 to 19 kt. Mostly sunny. Seas 1 ft or less.
Sunday Night
SSE wind around 18 kt, with gusts as high as 24 kt. Partly cloudy. Seas 1 ft or less.
Monday
SSE wind around 18 kt, with gusts as high as 24 kt. Sunny. 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: 6:21 am CDT Jun 18, 2026
Forecast Valid: 6am CDT Jun 18, 2026-6pm CDT Jun 24, 2026
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