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Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Overnight

      Overnight:S wind 14 to 16 kt. Partly cloudy. Seas around 2 ft.

      Low: 76 °F

      S 16kt
      2ft

    • Wednesday

      Wednesday:SSE wind 13 to 17 kt. Mostly sunny. Seas around 2 ft.

      High: 81 °F

      SSE 17kt
      2ft

    • Wednesday Night

      Wednesday Night:SE wind 11 to 14 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 77 °F

      SE 14kt
      2-3ft

    • Thursday

      Thursday:SE wind 11 to 16 kt. Partly sunny. Seas around 2 ft.

      High: 81 °F

      SE 16kt
      2ft

    • Thursday Night

      Thursday Night:SE wind 12 to 14 kt. Mostly cloudy. Seas 2 to 3 ft.

      Low: 77 °F

      SE 14kt
      2-3ft

    • Friday

      Friday:SSE wind 12 to 15 kt. Partly sunny. Seas around 2 ft.

      High: 82 °F

      SSE 15kt
      2ft

    • Friday Night

      Friday Night:E wind 10 to 15 kt becoming N 19 to 24 kt after midnight. A chance of showers and thunderstorms after 1am.   Seas 2 to 3 ft.

      Low: 68 °F

      ⇑N 24kt
      2-3ft

    • Saturday

      Saturday:N wind around 28 kt. A chance of showers and thunderstorms.   Seas 4 to 5 ft.

      High: 72 °F

      N 28kt
      4-5ft

    • Saturday Night

      Saturday Night:N wind 14 to 24 kt. A slight chance of showers.   Seas 6 ft subsiding to 3 ft.

      Low: 69 °F

      N 24kt
      6ftWaves Subsiding


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:30 pm CDT Apr 28, 2026
Forecast Valid: 11pm CDT Apr 28, 2026-6pm CDT May 5, 2026

View Nearby Observations

Detailed Forecast


Overnight
S wind 14 to 16 kt. Partly cloudy. Seas around 2 ft.
Wednesday
SSE wind 13 to 17 kt. Mostly sunny. Seas around 2 ft.
Wednesday Night
SE wind 11 to 14 kt. Mostly cloudy. Seas 2 to 3 ft.
Thursday
SE wind 11 to 16 kt. Partly sunny. Seas around 2 ft.
Thursday Night
SE wind 12 to 14 kt. Mostly cloudy. Seas 2 to 3 ft.
Friday
SSE wind 12 to 15 kt. Partly sunny. Seas around 2 ft.
Friday Night
E wind 10 to 15 kt becoming N 19 to 24 kt after midnight. A chance of showers and thunderstorms after 1am. Seas 2 to 3 ft.
Saturday
N wind around 28 kt. A chance of showers and thunderstorms. Seas 4 to 5 ft.
Saturday Night
N wind 14 to 24 kt. A slight chance of showers. Seas 6 ft subsiding to 3 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: 11:30 pm CDT Apr 28, 2026
Forecast Valid: 11pm CDT Apr 28, 2026-6pm CDT May 5, 2026
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