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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:Variable winds 5 kt or less. Areas of dense fog before 4am.  Seas 1 to 2 ft.

      Low: 68 °F

      Light Wind
      1-2ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming E 6 to 11 kt in the morning. Mostly sunny. Seas 1 to 2 ft.

      High: 73 °F

      ⇑E 11kt
      1-2ft

    • Saturday Night

      Saturday Night:SE wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.

      Low: 68 °F

      SE 10kt
      1-2ft

    • Sunday

      Sunday:SE wind 8 to 13 kt. Sunny. Seas 1 to 2 ft.

      High: 74 °F

      SE 13kt
      1-2ft

    • Sunday Night

      Sunday Night:SE wind 10 to 12 kt. Mostly clear. Seas 1 to 2 ft.

      Low: 69 °F

      SE 12kt
      1-2ft

    • Monday

      Monday:SSE wind 10 to 13 kt. Sunny. Seas 1 to 2 ft.

      High: 74 °F

      SSE 13kt
      1-2ft

    • Monday Night

      Monday Night:SSE wind around 12 kt. Mostly clear. Seas 1 to 2 ft.

      Low: 70 °F

      SSE 12kt
      1-2ft

    • Tuesday

      Tuesday:SSE wind 12 to 17 kt. Mostly sunny. Seas around 2 ft.

      High: 75 °F

      SSE 17kt
      2ft

    • Tuesday Night

      Tuesday Night:SE wind 12 to 16 kt. Mostly cloudy. Seas around 2 ft.

      Low: 70 °F

      SE 16kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:32 am CST Feb 28, 2026
Forecast Valid: 12am CST Feb 28, 2026-6pm CST Mar 6, 2026

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Detailed Forecast


Overnight
Variable winds 5 kt or less. Areas of dense fog before 4am. Seas 1 to 2 ft.
Saturday
Variable winds less than 5 kt becoming E 6 to 11 kt in the morning. Mostly sunny. Seas 1 to 2 ft.
Saturday Night
SE wind around 10 kt. Partly cloudy. Seas 1 to 2 ft.
Sunday
SE wind 8 to 13 kt. Sunny. Seas 1 to 2 ft.
Sunday Night
SE wind 10 to 12 kt. Mostly clear. Seas 1 to 2 ft.
Monday
SSE wind 10 to 13 kt. Sunny. Seas 1 to 2 ft.
Monday Night
SSE wind around 12 kt. Mostly clear. Seas 1 to 2 ft.
Tuesday
SSE wind 12 to 17 kt. Mostly sunny. Seas around 2 ft.
Tuesday Night
SE wind 12 to 16 kt. Mostly cloudy. Seas around 2 ft.

*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: 26.11°N 97.16°W
Last Update: 12:32 am CST Feb 28, 2026
Forecast Valid: 12am CST Feb 28, 2026-6pm CST Mar 6, 2026
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