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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:Variable winds less than 5 kt becoming E 7 to 12 kt in the morning. A chance of showers and thunderstorms, mainly before noon.   Seas 1 ft or less.

      High: 83 °F

      ⇑E 12kt
      < 1ft

    • Tonight

      Tonight:E wind 6 to 11 kt becoming S after midnight. Mostly cloudy. Seas 1 ft or less.

      Low: 80 °F

      E 11kt
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming ESE 7 to 12 kt in the morning. Partly sunny. Seas 1 ft or less.

      High: 84 °F

      ⇑ESE 12kt
      < 1ft

    • Friday Night

      Friday Night:ESE wind 7 to 11 kt. A slight chance of showers after 1am.   Seas 1 ft or less.

      Low: 80 °F

      ESE 11kt
      < 1ft

    • Saturday

      Saturday:SSE wind 7 to 14 kt. A slight chance of showers, then a chance of showers and thunderstorms after 10am.   Seas 1 ft or less.

      High: 84 °F

      SSE 14kt
      < 1ft

    • Saturday Night

      Saturday Night:SSE wind around 12 kt. A slight chance of thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am.   Seas 1 ft or less.

      Low: 82 °F

      SSE 12kt
      < 1ft

    • Sunday

      Sunday:SSE wind 12 to 16 kt. Partly sunny. Seas 1 ft or less.

      High: 85 °F

      SSE 16kt
      < 1ft

    • Sunday Night

      Sunday Night:SE wind around 13 kt. A slight chance of showers and thunderstorms after 1am.   Seas 1 ft or less.

      Low: 82 °F

      SE 13kt
      < 1ft

    • Monday

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

      High: 87 °F

      SSE 15kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:18 am CDT Jun 4, 2026
Forecast Valid: 5am CDT Jun 4, 2026-6pm CDT Jun 10, 2026

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Detailed Forecast


Today
Variable winds less than 5 kt becoming E 7 to 12 kt in the morning. A chance of showers and thunderstorms, mainly before noon. Seas 1 ft or less.
Tonight
E wind 6 to 11 kt becoming S after midnight. Mostly cloudy. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming ESE 7 to 12 kt in the morning. Partly sunny. Seas 1 ft or less.
Friday Night
ESE wind 7 to 11 kt. A slight chance of showers after 1am. Seas 1 ft or less.
Saturday
SSE wind 7 to 14 kt. A slight chance of showers, then a chance of showers and thunderstorms after 10am. Seas 1 ft or less.
Saturday Night
SSE wind around 12 kt. A slight chance of thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Seas 1 ft or less.
Sunday
SSE wind 12 to 16 kt. Partly sunny. Seas 1 ft or less.
Sunday Night
SE wind around 13 kt. A slight chance of showers and thunderstorms after 1am. Seas 1 ft or less.
Monday
SSE wind 13 to 15 kt. Partly 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: 5:18 am CDT Jun 4, 2026
Forecast Valid: 5am CDT Jun 4, 2026-6pm CDT Jun 10, 2026
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