For More Weather Information:

Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Monday

      Monday:S wind 5 to 15 kt becoming ESE in the morning. Sunny. Seas 1 to 2 ft.

      High: 89 °F

      ESE 15kt
      1-2ft

    • Monday Night

      Monday Night:SE wind 9 to 13 kt. Mostly clear. Seas 1 to 2 ft.

      Low: 80 °F

      SE 13kt
      1-2ft

    • Tuesday

      Tuesday:S wind 7 to 15 kt becoming ESE in the afternoon. Sunny. Seas 1 to 2 ft.

      High: 89 °F

      ESE 15kt
      1-2ft

    • Tuesday Night

      Tuesday Night:SE wind 8 to 13 kt. Mostly clear. Seas 1 to 2 ft.

      Low: 80 °F

      SE 13kt
      1-2ft

    • Wednesday

      Wednesday:S wind 6 to 14 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.

      High: 89 °F

      ESE 14kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SE wind 7 to 12 kt. Clear. Seas 1 ft or less.

      Low: 81 °F

      SE 12kt
      < 1ft

    • Thursday

      Thursday:Variable winds less than 5 kt becoming SE 9 to 14 kt in the morning. Sunny. Seas 1 ft or less.

      High: 92 °F

      ⇑SE 14kt
      < 1ft

    • Thursday Night

      Thursday Night:SE wind 7 to 12 kt. Clear. Seas 1 ft or less.

      Low: 80 °F

      SE 12kt
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming ESE 9 to 14 kt in the morning. Sunny. Seas 1 ft or less.

      High: 92 °F

      ⇑ESE 14kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:18 am CDT Aug 24, 2026
Forecast Valid: 1am CDT Aug 24, 2026-6pm CDT Aug 30, 2026

View Nearby Observations

Detailed Forecast


Monday
S wind 5 to 15 kt becoming ESE in the morning. Sunny. Seas 1 to 2 ft.
Monday Night
SE wind 9 to 13 kt. Mostly clear. Seas 1 to 2 ft.
Tuesday
S wind 7 to 15 kt becoming ESE in the afternoon. Sunny. Seas 1 to 2 ft.
Tuesday Night
SE wind 8 to 13 kt. Mostly clear. Seas 1 to 2 ft.
Wednesday
S wind 6 to 14 kt becoming ESE in the afternoon. Sunny. Seas 1 ft or less.
Wednesday Night
SE wind 7 to 12 kt. Clear. Seas 1 ft or less.
Thursday
Variable winds less than 5 kt becoming SE 9 to 14 kt in the morning. Sunny. Seas 1 ft or less.
Thursday Night
SE wind 7 to 12 kt. Clear. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming ESE 9 to 14 kt in the morning. Sunny. Seas 1 ft or less.

*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: 26.15°N 97.29°W
Last Update: 1:18 am CDT Aug 24, 2026
Forecast Valid: 1am CDT Aug 24, 2026-6pm CDT Aug 30, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data