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Brownsville, TX Local Forecast Office

2NM N Port Isabel TX

Marine Point Forecast

[NOTICE]

Today
High: 74 °F
SE 14kt
1-2ft
Tonight
Low: 69 °F
SE 12kt
2ft
Saturday
High: 75 °F
S 17kt
2ft
Saturday Night
Low: 48 °F
NNW 18kt
2-3ft
Sunday
High: 51 °F
NNW 22kt
3-4ft
Sunday Night
Low: 37 °F
N 23kt
4ft
Monday
High: 50 °F
NNW 23kt
2-4ft
Monday Night
Low: 45 °F
N 12kt
1-2ft
Tuesday
High: 63 °F
ESE 10kt
1-2ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:00 am CST Jan 23, 2026
Forecast Valid: 8am CST Jan 23, 2026-6pm CST Jan 29, 2026

View Nearby Observations

Detailed Forecast

Today

SE wind 8 to 14 kt. Partly sunny. Seas 1 to 2 ft.

Tonight

SE wind around 12 kt. A slight chance of showers before 1am, then a slight chance of showers and thunderstorms between 1am and 3am. Seas around 2 ft.

Saturday

S wind 12 to 17 kt. A slight chance of showers and thunderstorms before 9am, then a slight chance of showers between 9am and noon, then a slight chance of showers and thunderstorms after noon. Patchy fog before 7am. Seas around 2 ft.

Saturday Night

SSE wind 14 to 18 kt becoming NNW in the evening. A chance of showers and thunderstorms. Seas 2 to 3 ft.

Sunday

NNW wind 19 to 22 kt. A slight chance of showers before noon. Seas 3 to 4 ft.

Sunday Night

N wind around 23 kt. Mostly cloudy. Seas around 4 ft.

Monday

NNW wind 13 to 23 kt. Mostly cloudy. Seas 2 to 4 ft.

Monday Night

N wind 6 to 12 kt. Mostly cloudy. Seas 1 to 2 ft.

Tuesday

NNE wind 6 to 10 kt becoming SE in the afternoon. Partly sunny. 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.