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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SSE wind around 20 kt, with gusts as high as 27 kt. Mostly sunny. Seas 1 ft or less.

      High: 80 °F

      SSE 20kt
      < 1ft

      Small Craft Advisory
      Small Craft Advisory

    • Tonight

      Tonight:SSE wind 15 to 19 kt, with gusts as high as 26 kt. Mostly cloudy. Seas 1 ft or less.

      Low: 72 °F

      SSE 19kt
      < 1ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday

      Wednesday:S wind 10 to 13 kt becoming NNE in the afternoon. Mostly cloudy through mid morning, then gradual clearing. Seas 1 ft or less.

      High: 86 °F

      S 13kt
      < 1ft

    • Wednesday Night

      Wednesday Night:Variable winds less than 5 kt becoming N 8 to 13 kt after midnight. Mostly clear. Seas 1 ft or less.

      Low: 64 °F

      ⇑N 13kt
      < 1ft

    • Thursday

      Thursday:N wind 17 to 20 kt. Sunny. Seas 1 ft or less.

      High: 69 °F

      N 20kt
      < 1ft

    • Thursday Night

      Thursday Night:NNE wind 8 to 13 kt becoming variable and less than 5 kt after midnight. Clear. Seas 1 ft or less.

      Low: 60 °F

      NNE 13kt⇓
      < 1ft

    • Friday

      Friday:Variable winds less than 5 kt becoming ESE 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.

      High: 75 °F

      ⇑ESE 10kt
      < 1ft

    • Friday Night

      Friday Night:SE wind 8 to 11 kt. Clear. Seas 1 ft or less.

      Low: 66 °F

      SE 11kt
      < 1ft

    • Saturday

      Saturday:SSE wind 8 to 16 kt. Sunny. Seas 1 ft or less.

      High: 78 °F

      SSE 16kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:45 pm CDT Mar 10, 2026
Forecast Valid: 5pm CDT Mar 10, 2026-6pm CDT Mar 17, 2026

View Nearby Observations

Detailed Forecast


This Afternoon
SSE wind around 20 kt, with gusts as high as 27 kt. Mostly sunny. Seas 1 ft or less.
Tonight
SSE wind 15 to 19 kt, with gusts as high as 26 kt. Mostly cloudy. Seas 1 ft or less.
Wednesday
S wind 10 to 13 kt becoming NNE in the afternoon. Mostly cloudy through mid morning, then gradual clearing. Seas 1 ft or less.
Wednesday Night
Variable winds less than 5 kt becoming N 8 to 13 kt after midnight. Mostly clear. Seas 1 ft or less.
Thursday
N wind 17 to 20 kt. Sunny. Seas 1 ft or less.
Thursday Night
NNE wind 8 to 13 kt becoming variable and less than 5 kt after midnight. Clear. Seas 1 ft or less.
Friday
Variable winds less than 5 kt becoming ESE 5 to 10 kt in the afternoon. Sunny. Seas 1 ft or less.
Friday Night
SE wind 8 to 11 kt. Clear. Seas 1 ft or less.
Saturday
SSE wind 8 to 16 kt. Sunny. Seas 1 ft or less.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 26.15°N 97.29°W
Last Update: 5:45 pm CDT Mar 10, 2026
Forecast Valid: 5pm CDT Mar 10, 2026-6pm CDT Mar 17, 2026
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