For More Weather Information:

4NM ENE Port Isabel TX

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:30 pm CST Nov 20, 2025
Forecast Valid: 3pm CST Nov 20, 2025-6pm CST Nov 26, 2025

This Afternoon

SSE wind 16 to 18 kt. Mostly sunny. Seas around 2 ft.

Tonight

SSE wind around 16 kt. Partly cloudy. Seas 2 to 3 ft.

Friday

SSE wind 13 to 16 kt. Partly sunny, then gradually becoming sunny. Seas 2 to 3 ft.

Friday Night

SSE wind 9 to 12 kt. Mostly clear. Seas around 2 ft.

Saturday

SE wind 9 to 12 kt. A chance of showers, with thunderstorms also possible after 9am. Seas around 2 ft.

Saturday Night

ESE wind around 12 kt. A slight chance of showers. Seas 2 to 3 ft.

Sunday

SE wind 12 to 16 kt. A slight chance of showers before noon. Seas 2 to 3 ft.

Sunday Night

SSE wind 16 to 22 kt. Partly cloudy. Seas 2 to 4 ft.

Monday

S wind 15 to 21 kt. Mostly sunny. Seas 3 to 4 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.