For More Weather Information:

Brownsville, TX Local Forecast Office

2NM ESE Port Mansfield TX

Marine Point Forecast

[NOTICE]

Overnight
Low: 74 °F
SSE 17kt
< 1ft
Saturday
High: 79 °F
SE 16kt
< 1ft
Saturday Night
Low: 69 °F
NNE 20kt
< 1ft
Sunday
High: 72 °F
NNE 23kt
< 1ft
Sunday Night
Low: 70 °F
NE 17kt
< 1ft
Monday
High: 74 °F
E 16kt
< 1ft
Monday Night
Low: 71 °F
E 17kt
< 1ft
Tuesday
High: 76 °F
SE 15kt
< 1ft
Tuesday Night
Low: 72 °F
ESE 14kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 12:45 am CDT Apr 18, 2026
Forecast Valid: 12am CDT Apr 18, 2026-6pm CDT Apr 24, 2026

View Nearby Observations

Detailed Forecast

Overnight

SSE wind around 17 kt, with gusts as high as 23 kt. Mostly cloudy. Seas 1 ft or less.

Saturday

SSE wind 13 to 16 kt becoming ESE in the afternoon. Winds could gust as high as 22 kt. Mostly cloudy. Seas 1 ft or less.

Saturday Night

E wind 11 to 20 kt becoming NNE after midnight. A slight chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Seas 1 ft or less.

Sunday

NNE wind 19 to 23 kt. Showers likely. Seas 1 ft or less.

Sunday Night

NE wind 12 to 17 kt, with gusts as high as 23 kt. Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Seas 1 ft or less.

Monday

E wind 12 to 16 kt, with gusts as high as 22 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Monday Night

E wind 10 to 17 kt. A chance of showers and thunderstorms, mainly before 1am. Seas 1 ft or less.

Tuesday

SE wind 8 to 15 kt, with gusts as high as 22 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Tuesday Night

ESE wind 8 to 14 kt, with gusts as high as 20 kt. Mostly cloudy. 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.