For More Weather Information:

Brownsville, TX Local Forecast Office

4NM ENE Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tuesday

      Tuesday:N wind around 9 kt becoming ENE in the afternoon. Mostly sunny. Seas 1 to 3 ft.

      High: 60 °F

      N 9kt
      1-3ft

    • Tuesday Night

      Tuesday Night:ENE wind 5 to 8 kt becoming N after midnight. Mostly cloudy. Seas 1 to 2 ft.

      Low: 57 °F

      ENE 8kt
      1-2ft

    • Wednesday

      Wednesday:N wind 9 to 13 kt. Partly sunny. Seas 1 to 2 ft.

      High: 63 °F

      N 13kt
      1-2ft

    • Wednesday Night

      Wednesday Night:NE wind 6 to 9 kt becoming ESE after midnight. Partly cloudy. Seas 1 to 2 ft.

      Low: 59 °F

      NE 9kt
      1-2ft

    • Thursday

      Thursday:SE wind 7 to 12 kt. Mostly cloudy. Seas 1 to 2 ft.

      High: 69 °F

      SE 12kt
      1-2ft

    • Thursday Night

      Thursday Night:SSE wind 8 to 13 kt becoming N 16 to 21 kt after midnight. A chance of showers and thunderstorms.   Seas 1 to 2 ft.

      Low: 53 °F

      ⇑N 21kt
      1-2ft

    • Friday

      Friday:N wind 24 to 27 kt. Mostly cloudy. Seas 1 to 3 ft.

      High: 59 °F

      N 27kt
      1-3ft

    • Friday Night

      Friday Night:N wind 24 to 26 kt. Mostly cloudy. Seas 2 to 4 ft.

      Low: 49 °F

      N 26kt
      2-4ft

    • Saturday

      Saturday:N wind 15 to 23 kt. Mostly sunny. Seas 5 ft subsiding to 2 ft.

      High: 54 °F

      N 23kt
      5ftWaves Subsiding


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:00 am CST Jan 27, 2026
Forecast Valid: 4am CST Jan 27, 2026-6pm CST Feb 2, 2026

View Nearby Observations

Detailed Forecast


Tuesday
N wind around 9 kt becoming ENE in the afternoon. Mostly sunny. Seas 1 to 3 ft.
Tuesday Night
ENE wind 5 to 8 kt becoming N after midnight. Mostly cloudy. Seas 1 to 2 ft.
Wednesday
N wind 9 to 13 kt. Partly sunny. Seas 1 to 2 ft.
Wednesday Night
NE wind 6 to 9 kt becoming ESE after midnight. Partly cloudy. Seas 1 to 2 ft.
Thursday
SE wind 7 to 12 kt. Mostly cloudy. Seas 1 to 2 ft.
Thursday Night
SSE wind 8 to 13 kt becoming N 16 to 21 kt after midnight. A chance of showers and thunderstorms. Seas 1 to 2 ft.
Friday
N wind 24 to 27 kt. Mostly cloudy. Seas 1 to 3 ft.
Friday Night
N wind 24 to 26 kt. Mostly cloudy. Seas 2 to 4 ft.
Saturday
N wind 15 to 23 kt. Mostly sunny. Seas 5 ft subsiding to 2 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.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

Point Forecast: 26.11°N 97.16°W
Last Update: 4:00 am CST Jan 27, 2026
Forecast Valid: 4am CST Jan 27, 2026-6pm CST Feb 2, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data