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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:S wind 13 to 16 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Some of the storms could produce heavy rainfall.   Seas 2 to 3 ft.

      Low: 80 °F

      S 16kt
      2-3ft

    • Tuesday

      Tuesday:S wind 10 to 17 kt. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall.   Seas around 2 ft.

      High: 83 °F

      S 17kt
      2ft

    • Tuesday Night

      Tuesday Night:SSW wind 9 to 14 kt. Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms after 7pm.   Seas 2 to 3 ft.

      Low: 80 °F

      SSW 14kt
      2-3ft

    • Wednesday

      Wednesday:SW wind 11 to 14 kt becoming S in the afternoon. A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 3pm.   Seas around 2 ft.

      High: 87 °F

      S 14kt
      2ft

    • Wednesday Night

      Wednesday Night:S wind 15 to 19 kt. Mostly clear. Seas 3 to 4 ft.

      Low: 85 °F

      S 19kt
      3-4ft

    • Thursday

      Thursday:SSE wind around 20 kt. Sunny. Seas around 3 ft.

      High: 88 °F

      SSE 20kt
      3ft

    • Thursday Night

      Thursday Night:SSE wind 19 to 22 kt. Mostly clear. Seas 4 to 5 ft.

      Low: 86 °F

      SSE 22kt
      4-5ft

    • Juneteenth

      Juneteenth:SE wind 16 to 18 kt. Sunny. Seas 2 to 3 ft.

      High: 87 °F

      SE 18kt
      2-3ft

    • Friday Night

      Friday Night:SE wind 14 to 16 kt. Mostly cloudy. Seas 2 to 4 ft.

      Low: 84 °F

      SE 16kt
      2-4ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:21 am CDT Jun 16, 2026
Forecast Valid: 12am CDT Jun 16, 2026-6pm CDT Jun 22, 2026

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Detailed Forecast


Overnight
S wind 13 to 16 kt. Showers and thunderstorms likely, then showers and possibly a thunderstorm after 3am. Some of the storms could produce heavy rainfall. Seas 2 to 3 ft.
Tuesday
S wind 10 to 17 kt. Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Seas around 2 ft.
Tuesday Night
SSW wind 9 to 14 kt. Showers likely and possibly a thunderstorm before 7pm, then a chance of showers and thunderstorms after 7pm. Seas 2 to 3 ft.
Wednesday
SW wind 11 to 14 kt becoming S in the afternoon. A chance of showers and thunderstorms before 9am, then a slight chance of showers and thunderstorms after 3pm. Seas around 2 ft.
Wednesday Night
S wind 15 to 19 kt. Mostly clear. Seas 3 to 4 ft.
Thursday
SSE wind around 20 kt. Sunny. Seas around 3 ft.
Thursday Night
SSE wind 19 to 22 kt. Mostly clear. Seas 4 to 5 ft.
Juneteenth
SE wind 16 to 18 kt. Sunny. Seas 2 to 3 ft.
Friday Night
SE wind 14 to 16 kt. Mostly cloudy. Seas 2 to 4 ft.

Winds and seas 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: 26.11°N 97.16°W
Last Update: 12:21 am CDT Jun 16, 2026
Forecast Valid: 12am CDT Jun 16, 2026-6pm CDT Jun 22, 2026
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