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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:S wind 6 to 9 kt. Partly cloudy. Seas 1 ft or less.

      Low: 60 °F

      S 9kt
      < 1ft

    • Sunday

      Sunday:ESE wind 5 to 12 kt. Mostly sunny. Seas 1 ft or less.

      High: 72 °F

      ESE 12kt
      < 1ft

    • Sunday Night

      Sunday Night:SE wind 5 to 10 kt becoming S after midnight. Partly cloudy. Seas 1 ft or less.

      Low: 62 °F

      SE 10kt
      < 1ft

    • Monday

      Monday:Variable winds less than 5 kt becoming SE 8 to 13 kt in the morning. Mostly sunny. Seas 1 ft or less.

      High: 73 °F

      ⇑SE 13kt
      < 1ft

    • Monday Night

      Monday Night:SSE wind 9 to 12 kt. Partly cloudy. Seas 1 ft or less.

      Low: 64 °F

      SSE 12kt
      < 1ft

    • Tuesday

      Tuesday:SSE wind 9 to 15 kt. Partly sunny. Seas 1 ft or less.

      High: 73 °F

      SSE 15kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSE wind 5 to 12 kt. Mostly clear. Seas 1 ft or less.

      Low: 63 °F

      SSE 12kt
      < 1ft

    • Wednesday

      Wednesday:S wind 5 to 12 kt. Sunny. Seas 1 ft or less.

      High: 76 °F

      S 12kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SSE wind 5 to 11 kt. Clear. Seas 1 ft or less.

      Low: 64 °F

      SSE 11kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 7:18 pm CST Feb 7, 2026
Forecast Valid: 7pm CST Feb 7, 2026-6pm CST Feb 14, 2026

View Nearby Observations

Detailed Forecast


Tonight
S wind 6 to 9 kt. Partly cloudy. Seas 1 ft or less.
Sunday
ESE wind 5 to 12 kt. Mostly sunny. Seas 1 ft or less.
Sunday Night
SE wind 5 to 10 kt becoming S after midnight. Partly cloudy. Seas 1 ft or less.
Monday
Variable winds less than 5 kt becoming SE 8 to 13 kt in the morning. Mostly sunny. Seas 1 ft or less.
Monday Night
SSE wind 9 to 12 kt. Partly cloudy. Seas 1 ft or less.
Tuesday
SSE wind 9 to 15 kt. Partly sunny. Seas 1 ft or less.
Tuesday Night
SSE wind 5 to 12 kt. Mostly clear. Seas 1 ft or less.
Wednesday
S wind 5 to 12 kt. Sunny. Seas 1 ft or less.
Wednesday Night
SSE wind 5 to 11 kt. Clear. 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: 7:18 pm CST Feb 7, 2026
Forecast Valid: 7pm CST Feb 7, 2026-6pm CST Feb 14, 2026
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