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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Thursday

      Thursday:S wind around 15 kt. Mostly sunny. Seas 1 ft or less.

      High: 81 °F

      S 15kt
      < 1ft

    • Thursday Night

      Thursday Night:SSE wind 7 to 13 kt. Mostly cloudy. Seas 1 ft or less.

      Low: 68 °F

      SSE 13kt
      < 1ft

    • Friday

      Friday:SSE wind 6 to 13 kt. Sunny. Seas 1 ft or less.

      High: 80 °F

      SSE 13kt
      < 1ft

    • Friday Night

      Friday Night:SSE wind 6 to 12 kt. Mostly clear. Seas 1 ft or less.

      Low: 67 °F

      SSE 12kt
      < 1ft

    • Saturday

      Saturday:SSE wind 5 to 12 kt becoming NE in the afternoon. Sunny. Seas 1 ft or less.

      High: 79 °F

      NE 12kt
      < 1ft

    • Saturday Night

      Saturday Night:N wind 12 to 17 kt increasing to 19 to 24 kt after midnight. Winds could gust as high as 31 kt. Partly cloudy. Seas 1 ft or less.

      Low: 59 °F

      ⇑N 24kt
      < 1ft

    • Sunday

      Sunday:NNE wind 21 to 26 kt, with gusts as high as 32 kt. Mostly sunny. Seas 1 ft or less.

      High: 67 °F

      NNE 26kt
      < 1ft

    • Sunday Night

      Sunday Night:NE wind 13 to 20 kt. Partly cloudy. Seas 1 ft or less.

      Low: 55 °F

      NE 20kt
      < 1ft

    • Monday

      Monday:NE wind 13 to 17 kt. Mostly sunny. Seas 1 ft or less.

      High: 66 °F

      NE 17kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 3:18 am CST Feb 19, 2026
Forecast Valid: 3am CST Feb 19, 2026-6pm CST Feb 25, 2026

View Nearby Observations

Detailed Forecast


Thursday
S wind around 15 kt. Mostly sunny. Seas 1 ft or less.
Thursday Night
SSE wind 7 to 13 kt. Mostly cloudy. Seas 1 ft or less.
Friday
SSE wind 6 to 13 kt. Sunny. Seas 1 ft or less.
Friday Night
SSE wind 6 to 12 kt. Mostly clear. Seas 1 ft or less.
Saturday
SSE wind 5 to 12 kt becoming NE in the afternoon. Sunny. Seas 1 ft or less.
Saturday Night
N wind 12 to 17 kt increasing to 19 to 24 kt after midnight. Winds could gust as high as 31 kt. Partly cloudy. Seas 1 ft or less.
Sunday
NNE wind 21 to 26 kt, with gusts as high as 32 kt. Mostly sunny. Seas 1 ft or less.
Sunday Night
NE wind 13 to 20 kt. Partly cloudy. Seas 1 ft or less.
Monday
NE wind 13 to 17 kt. Mostly 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: 3:18 am CST Feb 19, 2026
Forecast Valid: 3am CST Feb 19, 2026-6pm CST Feb 25, 2026
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