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Brownsville, TX Local Forecast Office

3NM E Port Isabel TX

Marine Point Forecast

[NOTICE]

Columbus Day
High: 88 °F
SE 14kt
2ft
Tonight
Low: 83 °F
SSE 13kt
2ft
Tuesday
High: 88 °F
SSE 17kt
1-2ft
Tuesday Night
Low: 83 °F
SE 15kt
2ft
Wednesday
High: 87 °F
SE 17kt
2ft
Wednesday Night
Low: 80 °F
SE 16kt
2ft
Thursday
High: 86 °F
ESE 14kt
2ft
Thursday Night
Low: 80 °F
E 11kt
2ft
Friday
High: 84 °F
⇑NNE 20kt
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:06 pm CDT Oct 12, 2026
Forecast Valid: 12pm CDT Oct 12, 2026-6pm CDT Oct 18, 2026

View Nearby Observations

Detailed Forecast

Columbus Day

SE wind 12 to 14 kt. Sunny. Seas around 2 ft.

Tonight

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

Tuesday

SSE wind 13 to 17 kt. Sunny. Seas 1 to 2 ft.

Tuesday Night

SE wind 13 to 15 kt. Mostly clear. Seas around 2 ft.

Wednesday

SE wind 14 to 17 kt. Sunny. Seas around 2 ft.

Wednesday Night

SE wind around 16 kt. Mostly clear. Seas around 2 ft.

Thursday

ESE wind 12 to 14 kt. Sunny. Seas around 2 ft.

Thursday Night

E wind 7 to 11 kt. Mostly clear. Seas around 2 ft.

Friday

NNE wind 8 to 13 kt increasing to 15 to 20 kt in the afternoon. A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Seas 1 to 2 ft.

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.