For More Weather Information:

Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSE wind 18 to 23 km/h. Sunny. Seas 1 m or less.

      High: 29 °C

      SSE 23km/h
      < 1m

    • Tonight

      Tonight:SSE wind 21 to 23 km/h. Partly cloudy. Seas 1 m or less.

      Low: 27 °C

      SSE 23km/h
      < 1m

    • Thursday

      Thursday:S wind 18 to 24 km/h. Partly sunny. Seas 1 m or less.

      High: 29 °C

      S 24km/h
      < 1m

    • Thursday Night

      Thursday Night:SSE wind around 24 km/h. Partly cloudy. Seas around 1 m.

      Low: 27 °C

      SSE 24km/h
      1m

    • Friday

      Friday:SSE wind 24 to 29 km/h, with gusts as high as 37 km/h. Sunny. Seas around 1 m.

      High: 29 °C

      SSE 29km/h
      1m

    • Friday Night

      Friday Night:SE wind 23 to 26 km/h, with gusts as high as 32 km/h. Partly cloudy. Seas around 1 m.

      Low: 27 °C

      SE 26km/h
      1m

    • Saturday

      Saturday:SSE wind 23 to 27 km/h, with gusts as high as 34 km/h. A chance of showers and thunderstorms, mainly before 1pm.   Seas around 1 m.

      High: 29 °C

      SSE 27km/h
      1m

    • Saturday Night

      Saturday Night:SE wind around 23 km/h. A slight chance of showers and thunderstorms.   Seas around 1 m.

      Low: 27 °C

      SE 23km/h
      1m

    • Sunday

      Sunday:SSE wind around 24 km/h. A slight chance of showers and thunderstorms before 1pm.   Seas 1 m or less.

      High: 29 °C

      SSE 24km/h
      < 1m


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 9:45 am CDT Jul 9, 2025
Forecast Valid: 9am CDT Jul 9, 2025-6pm CDT Jul 15, 2025

View Nearby Observations

Detailed Forecast


Today
SSE wind 18 to 23 km/h. Sunny. Seas 1 m or less.
Tonight
SSE wind 21 to 23 km/h. Partly cloudy. Seas 1 m or less.
Thursday
S wind 18 to 24 km/h. Partly sunny. Seas 1 m or less.
Thursday Night
SSE wind around 24 km/h. Partly cloudy. Seas around 1 m.
Friday
SSE wind 24 to 29 km/h, with gusts as high as 37 km/h. Sunny. Seas around 1 m.
Friday Night
SE wind 23 to 26 km/h, with gusts as high as 32 km/h. Partly cloudy. Seas around 1 m.
Saturday
SSE wind 23 to 27 km/h, with gusts as high as 34 km/h. A chance of showers and thunderstorms, mainly before 1pm. Seas around 1 m.
Saturday Night
SE wind around 23 km/h. A slight chance of showers and thunderstorms. Seas around 1 m.
Sunday
SSE wind around 24 km/h. A slight chance of showers and thunderstorms before 1pm. Seas 1 m or less.

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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

Point Forecast: 26.11°N 97.16°W
Last Update: 9:45 am CDT Jul 9, 2025
Forecast Valid: 9am CDT Jul 9, 2025-6pm CDT Jul 15, 2025
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data