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Brownsville, TX Local Forecast Office

2NM N Port Isabel TX

Marine Point Forecast

[NOTICE]

Sunday
High: 82 °F
⇑ENE 12kt
< 1ft
Sunday Night
Low: 77 °F
ENE 10kt⇓
< 1ft
Memorial Day
High: 81 °F
⇑ENE 11kt
< 1ft
Monday Night
Low: 79 °F
E 9kt
< 1ft
Tuesday
High: 83 °F
SSE 15kt
< 1ft
Tuesday Night
Low: 81 °F
SE 16kt
< 1ft
Wednesday
High: 83 °F
SSE 18kt
< 1ft
Wednesday Night
Low: 81 °F
SE 14kt
< 1ft
Thursday
High: 83 °F
SE 14kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:18 am CDT May 24, 2026
Forecast Valid: 4am CDT May 24, 2026-6pm CDT May 30, 2026

View Nearby Observations

Detailed Forecast

Sunday

Variable winds less than 5 kt becoming ENE 7 to 12 kt in the afternoon. A slight chance of showers and thunderstorms between 1pm and 3pm. Seas 1 ft or less.

Sunday Night

ENE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. Partly cloudy. Seas 1 ft or less.

Memorial Day

Variable winds less than 5 kt becoming ENE 6 to 11 kt in the morning. Sunny. Seas 1 ft or less.

Monday Night

E wind 7 to 9 kt becoming SE after midnight. Partly cloudy. Seas 1 ft or less.

Tuesday

SSE wind 7 to 15 kt. Partly sunny. Seas 1 ft or less.

Tuesday Night

SE wind 14 to 16 kt. A slight chance of showers and thunderstorms after 1am. Seas 1 ft or less.

Wednesday

SSE wind 15 to 18 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Wednesday Night

SE wind 11 to 14 kt. A slight chance of showers and thunderstorms before 1am. Seas 1 ft or less.

Thursday

SE wind 9 to 14 kt. Mostly sunny. Seas 1 ft or less.

Winds and waves 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.