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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]

    • This Afternoon

      This Afternoon:SE wind around 18 kt. A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

      High: 79 °F

      SE 18kt
      < 1ft

    • Tonight

      Tonight:SSE wind 12 to 16 kt. A slight chance of showers and thunderstorms, mainly between 10pm and 11pm. Seas 1 ft or less.

      Low: 73 °F

      SSE 16kt
      < 1ft

    • Monday

      Monday:SSE wind 11 to 17 kt. Partly sunny. Seas 1 ft or less.

      High: 79 °F

      SSE 17kt
      < 1ft

    • Monday Night

      Monday Night:SE wind around 14 kt. Partly cloudy. Seas 1 ft or less.

      Low: 73 °F

      SE 14kt
      < 1ft

    • Tuesday

      Tuesday:SSE wind 13 to 18 kt. Mostly cloudy, then gradually becoming sunny. Seas 1 to 2 ft.

      High: 80 °F

      SSE 18kt
      1-2ft

    • Tuesday Night

      Tuesday Night:SE wind around 16 kt. Increasing clouds. Seas around 2 ft.

      Low: 73 °F

      SE 16kt
      2ft

    • Wednesday

      Wednesday:SSE wind 14 to 18 kt. Partly sunny. Seas around 2 ft.

      High: 80 °F

      SSE 18kt
      2ft

    • Wednesday Night

      Wednesday Night:SE wind 12 to 15 kt. Mostly cloudy. Seas around 2 ft.

      Low: 74 °F

      SE 15kt
      2ft

    • Thursday

      Thursday:SE wind 10 to 18 kt. Mostly sunny. Seas around 2 ft.

      High: 80 °F

      SE 18kt
      2ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:00 pm CDT Apr 12, 2026
Forecast Valid: 1pm CDT Apr 12, 2026-6pm CDT Apr 18, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SE wind around 18 kt. A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 5pm. Seas 1 ft or less.
Tonight
SSE wind 12 to 16 kt. A slight chance of showers and thunderstorms, mainly between 10pm and 11pm. Seas 1 ft or less.
Monday
SSE wind 11 to 17 kt. Partly sunny. Seas 1 ft or less.
Monday Night
SE wind around 14 kt. Partly cloudy. Seas 1 ft or less.
Tuesday
SSE wind 13 to 18 kt. Mostly cloudy, then gradually becoming sunny. Seas 1 to 2 ft.
Tuesday Night
SE wind around 16 kt. Increasing clouds. Seas around 2 ft.
Wednesday
SSE wind 14 to 18 kt. Partly sunny. Seas around 2 ft.
Wednesday Night
SE wind 12 to 15 kt. Mostly cloudy. Seas around 2 ft.
Thursday
SE wind 10 to 18 kt. Mostly sunny. Seas around 2 ft.

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: 1:00 pm CDT Apr 12, 2026
Forecast Valid: 1pm CDT Apr 12, 2026-6pm CDT Apr 18, 2026
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