For More Weather Information:

4NM ENE Port Isabel TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 4:30 am CST Mar 7, 2026
Forecast Valid: 4am CST Mar 7, 2026-6pm CDT Mar 13, 2026

Saturday

SSE wind 14 to 16 kt. Partly sunny. Seas around 2 ft.

Saturday Night

SE wind 7 to 14 kt. A slight chance of showers and thunderstorms after 5am. Seas 2 to 3 ft.

Sunday

ESE wind 7 to 11 kt. A chance of showers. Seas around 2 ft.

Sunday Night

ESE wind 8 to 10 kt becoming SSE after midnight. Increasing clouds. Seas 2 to 3 ft.

Monday

SSE wind 9 to 16 kt. Partly sunny. Seas around 2 ft.

Monday Night

SSE wind 15 to 17 kt. Increasing clouds. Seas 2 to 3 ft.

Tuesday

SSE wind 16 to 20 kt, with gusts as high as 26 kt. Mostly cloudy. Seas 2 to 4 ft.

Tuesday Night

SSE wind 10 to 19 kt. Mostly cloudy. Seas 2 to 3 ft.

Wednesday

S wind around 10 kt becoming NE in the morning. Partly sunny. Seas 2 to 3 ft.

Winds and seas higher in and near thunderstorms.

*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.