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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:E wind 7 to 14 kt. A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm.   Seas 1 ft or less.

      High: 87 °F

      E 14kt
      < 1ft

    • Tonight

      Tonight:ESE wind 6 to 12 kt. Mostly clear. Seas 1 ft or less.

      Low: 81 °F

      ESE 12kt
      < 1ft

    • Saturday

      Saturday:ENE wind 5 to 13 kt. Sunny. Seas 1 ft or less.

      High: 87 °F

      ENE 13kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

      Low: 80 °F

      E 10kt⇓
      < 1ft

    • Sunday

      Sunday:Variable winds less than 5 kt becoming E 7 to 12 kt in the afternoon. Sunny. Seas 1 ft or less.

      High: 88 °F

      ⇑E 12kt
      < 1ft

    • Sunday Night

      Sunday Night:ESE wind 6 to 11 kt becoming SSE after midnight. Partly cloudy. Seas 1 ft or less.

      Low: 81 °F

      ESE 11kt
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming ESE 9 to 14 kt in the morning. A slight chance of showers and thunderstorms after 1pm.   Seas 1 ft or less.

      High: 88 °F

      ⇑ESE 14kt
      < 1ft

    • Monday Night

      Monday Night:SSE wind 10 to 13 kt. Partly cloudy. Seas 1 ft or less.

      Low: 82 °F

      SSE 13kt
      < 1ft

    • Tuesday

      Tuesday:SSE wind 10 to 18 kt. Mostly sunny. Seas 1 ft or less.

      High: 91 °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 Sep 25, 2026
Forecast Valid: 6am CDT Sep 25, 2026-6pm CDT Oct 1, 2026

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Detailed Forecast


Today
E wind 7 to 14 kt. A slight chance of showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm. Seas 1 ft or less.
Tonight
ESE wind 6 to 12 kt. Mostly clear. Seas 1 ft or less.
Saturday
ENE wind 5 to 13 kt. Sunny. Seas 1 ft or less.
Saturday Night
E wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.
Sunday
Variable winds less than 5 kt becoming E 7 to 12 kt in the afternoon. Sunny. Seas 1 ft or less.
Sunday Night
ESE wind 6 to 11 kt becoming SSE after midnight. Partly cloudy. Seas 1 ft or less.
Monday
Variable winds less than 5 kt becoming ESE 9 to 14 kt in the morning. A slight chance of showers and thunderstorms after 1pm. Seas 1 ft or less.
Monday Night
SSE wind 10 to 13 kt. Partly cloudy. Seas 1 ft or less.
Tuesday
SSE wind 10 to 18 kt. Mostly 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 Sep 25, 2026
Forecast Valid: 6am CDT Sep 25, 2026-6pm CDT Oct 1, 2026
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