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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:NNE wind around 12 kt becoming E in the afternoon. Mostly cloudy through mid morning, then gradual clearing. Seas 1 ft or less.

      High: 65 °F

      NNE 12kt
      < 1ft

    • Tonight

      Tonight:E wind 7 to 11 kt becoming SSE after midnight. Mostly clear. Seas 1 ft or less.

      Low: 59 °F

      E 11kt
      < 1ft

    • Wednesday

      Wednesday:SSE wind 7 to 14 kt. Sunny. Seas 1 ft or less.

      High: 72 °F

      SSE 14kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SE wind 6 to 12 kt. Mostly clear. Seas 1 ft or less.

      Low: 63 °F

      SE 12kt
      < 1ft

    • Thursday

      Thursday:ESE wind 5 to 11 kt. Sunny. Seas 1 ft or less.

      High: 75 °F

      ESE 11kt
      < 1ft

    • Thursday Night

      Thursday Night:ESE wind 6 to 12 kt becoming S after midnight. Clear. Seas 1 ft or less.

      Low: 64 °F

      ESE 12kt
      < 1ft

    • Friday

      Friday:S wind 5 to 12 kt becoming SE in the afternoon. Sunny. Seas 1 ft or less.

      High: 79 °F

      SE 12kt
      < 1ft

    • Friday Night

      Friday Night:S wind 9 to 13 kt. Clear. Seas 1 ft or less.

      Low: 66 °F

      S 13kt
      < 1ft

    • Saturday

      Saturday:S wind 8 to 15 kt. Sunny. Seas 1 ft or less.

      High: 80 °F

      S 15kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 6:18 am CDT Mar 17, 2026
Forecast Valid: 6am CDT Mar 17, 2026-6pm CDT Mar 23, 2026

View Nearby Observations

Detailed Forecast


Today
NNE wind around 12 kt becoming E in the afternoon. Mostly cloudy through mid morning, then gradual clearing. Seas 1 ft or less.
Tonight
E wind 7 to 11 kt becoming SSE after midnight. Mostly clear. Seas 1 ft or less.
Wednesday
SSE wind 7 to 14 kt. Sunny. Seas 1 ft or less.
Wednesday Night
SE wind 6 to 12 kt. Mostly clear. Seas 1 ft or less.
Thursday
ESE wind 5 to 11 kt. Sunny. Seas 1 ft or less.
Thursday Night
ESE wind 6 to 12 kt becoming S after midnight. Clear. Seas 1 ft or less.
Friday
S wind 5 to 12 kt becoming SE in the afternoon. Sunny. Seas 1 ft or less.
Friday Night
S wind 9 to 13 kt. Clear. Seas 1 ft or less.
Saturday
S wind 8 to 15 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: 6:18 am CDT Mar 17, 2026
Forecast Valid: 6am CDT Mar 17, 2026-6pm CDT Mar 23, 2026
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