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Brownsville, TX Local Forecast Office

2NM ESE Port Mansfield TX

Marine Point Forecast

[NOTICE]

Tonight
Low: 68 °F
NNW 12kt
< 1ft
Thursday
High: 75 °F
N 12kt
< 1ft
Thursday Night
Low: 67 °F
N 9kt
< 1ft
Friday
High: 77 °F
N 8kt⇓
< 1ft
Friday Night
Low: 71 °F
ESE 13kt
< 1ft
Saturday
High: 78 °F
SE 14kt
< 1ft
Saturday Night
Low: 75 °F
ESE 18kt
< 1ft
Sunday
High: 80 °F
SE 15kt
< 1ft
Sunday Night
Low: 74 °F
ESE 12kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:18 pm CST Nov 11, 2026
Forecast Valid: 10pm CST Nov 11, 2026-6pm CST Nov 18, 2026

View Nearby Observations

Detailed Forecast

Tonight

NNW wind 8 to 12 kt. Mostly cloudy. Seas 1 ft or less.

Thursday

N wind 10 to 12 kt. Mostly cloudy. Seas 1 ft or less.

Thursday Night

N wind 7 to 9 kt. Cloudy during the early evening, then gradual clearing. Seas 1 ft or less.

Friday

N wind 5 to 8 kt becoming variable and less than 5 kt. Sunny. Seas 1 ft or less.

Friday Night

ESE wind 7 to 13 kt. Mostly clear. Seas 1 ft or less.

Saturday

SE wind around 14 kt, with gusts as high as 20 kt. A slight chance of showers, then a chance of showers and thunderstorms after noon. Seas 1 ft or less.

Saturday Night

ESE wind 14 to 18 kt. A slight chance of showers before midnight. Seas 1 ft or less.

Sunday

SE wind 13 to 15 kt, with gusts as high as 22 kt. A slight chance of showers. Seas 1 ft or less.

Sunday Night

ESE wind 8 to 12 kt becoming NNE after midnight. A slight chance of showers. 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.