For More Weather Information:

4NM ENE Port Isabel TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:47 pm CDT Mar 21, 2026
Forecast Valid: 2pm CDT Mar 21, 2026-6pm CDT Mar 27, 2026

This Afternoon

SSE wind around 17 kt. Sunny. Seas around 2 ft.

Tonight

SSE wind around 14 kt. Mostly clear. Seas around 2 ft.

Sunday

SSE wind 12 to 16 kt. Sunny. Seas 1 to 2 ft.

Sunday Night

SSE wind 9 to 13 kt. Mostly clear. Seas around 2 ft.

Monday

SSE wind 8 to 12 kt. Sunny. Seas around 1 ft.

Monday Night

ESE wind 6 to 11 kt. Mostly clear. Seas 1 to 2 ft.

Tuesday

SE wind 5 to 13 kt. A slight chance of showers. Seas 1 to 2 ft.

Tuesday Night

SE wind 8 to 12 kt. Mostly clear. Seas 1 to 2 ft.

Wednesday

SSE wind 8 to 15 kt. Sunny. Seas 1 to 2 ft.

*Notices:

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.
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.