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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:SE wind around 16 kt. Mostly sunny. Seas 1 ft or less.

      High: 88 °F

      SE 16kt
      < 1ft

    • Tonight

      Tonight:SE wind around 15 kt. Partly cloudy. Seas 1 ft or less.

      Low: 83 °F

      SE 15kt
      < 1ft

    • Wednesday

      Wednesday:SE wind 13 to 19 kt. Mostly sunny. Seas 1 ft or less.

      High: 90 °F

      SE 19kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SE wind 15 to 18 kt. Partly cloudy. Seas 1 ft or less.

      Low: 84 °F

      SE 18kt
      < 1ft

    • Thursday

      Thursday:SSE wind 14 to 19 kt. A slight chance of showers and thunderstorms after 1pm.   Seas 1 ft or less.

      High: 89 °F

      SSE 19kt
      < 1ft

    • Thursday Night

      Thursday Night:SE wind 10 to 16 kt. A chance of showers and thunderstorms.   Seas 1 ft or less.

      Low: 82 °F

      SE 16kt
      < 1ft

    • Friday

      Friday:SE wind 7 to 13 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.   Seas 1 ft or less.

      High: 87 °F

      SE 13kt
      < 1ft

    • Friday Night

      Friday Night:E wind 5 to 9 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.   Seas 1 ft or less.

      Low: 80 °F

      E 9kt⇓
      < 1ft

    • Saturday

      Saturday:Variable winds less than 5 kt becoming NE 6 to 11 kt in the morning. Showers and possibly a thunderstorm.   Seas 1 ft or less.

      High: 87 °F

      ⇑NE 11kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:15 pm CDT Sep 29, 2026
Forecast Valid: 5pm CDT Sep 29, 2026-6pm CDT Oct 6, 2026

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Detailed Forecast


This Afternoon
SE wind around 16 kt. Mostly sunny. Seas 1 ft or less.
Tonight
SE wind around 15 kt. Partly cloudy. Seas 1 ft or less.
Wednesday
SE wind 13 to 19 kt. Mostly sunny. Seas 1 ft or less.
Wednesday Night
SE wind 15 to 18 kt. Partly cloudy. Seas 1 ft or less.
Thursday
SSE wind 14 to 19 kt. A slight chance of showers and thunderstorms after 1pm. Seas 1 ft or less.
Thursday Night
SE wind 10 to 16 kt. A chance of showers and thunderstorms. Seas 1 ft or less.
Friday
SE wind 7 to 13 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Seas 1 ft or less.
Friday Night
E wind 5 to 9 kt becoming variable and less than 5 kt after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Seas 1 ft or less.
Saturday
Variable winds less than 5 kt becoming NE 6 to 11 kt in the morning. Showers and possibly a thunderstorm. Seas 1 ft or less.

Winds and waves higher in and near thunderstorms.

*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: 5:15 pm CDT Sep 29, 2026
Forecast Valid: 5pm CDT Sep 29, 2026-6pm CDT Oct 6, 2026
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