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Brownsville, TX Local Forecast Office

2NM N Port Isabel TX

Marine Point Forecast

[NOTICE]

This Afternoon
High: 82 °F
SE 10kt
< 1ft
Tonight
Low: 75 °F
SE 10kt⇓
< 1ft
Friday
High: 78 °F
⇑NNE 14kt
< 1ft
Friday Night
Low: 74 °F
NE 12kt
< 1ft
Saturday
High: 78 °F
E 14kt
< 1ft
Saturday Night
Low: 72 °F
ESE 14kt
< 1ft
Sunday
High: 75 °F
E 18kt
< 1ft
Sunday Night
Low: 67 °F
NNE 17kt
< 1ft
Monday
High: 72 °F
NNE 16kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:18 pm CST Nov 5, 2026
Forecast Valid: 5pm CST Nov 5, 2026-6pm CST Nov 12, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

SE wind around 10 kt. Sunny. Seas 1 ft or less.

Tonight

SE wind 5 to 10 kt becoming variable and less than 5 kt after midnight. A slight chance of showers, then a chance of showers and thunderstorms after midnight. Seas 1 ft or less.

Friday

Variable winds less than 5 kt becoming NNE 9 to 14 kt in the morning. Showers and thunderstorms, mainly before 3pm. Seas 1 ft or less.

Friday Night

NE wind 8 to 12 kt. A chance of showers, mainly after midnight. Seas 1 ft or less.

Saturday

E wind 10 to 14 kt. A chance of showers, with thunderstorms also possible after 9am. Seas 1 ft or less.

Saturday Night

ESE wind 12 to 14 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

Sunday

ESE wind 13 to 18 kt becoming ENE in the afternoon. Showers and possibly a thunderstorm. Seas 1 ft or less.

Sunday Night

NNE wind around 17 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

Monday

NNE wind 14 to 16 kt. A chance of showers and thunderstorms. 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.