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Brownsville, TX Local Forecast Office

Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Tonight

      Tonight:SSE wind 10 to 13 kt. Mostly clear. Seas 1 ft or less.

      Low: 82 °F

      SSE 13kt
      < 1ft

    • Wednesday

      Wednesday:SE wind 10 to 17 kt. Mostly sunny. Seas 1 ft or less.

      High: 85 °F

      SE 17kt
      < 1ft

    • Wednesday Night

      Wednesday Night:SE wind 10 to 15 kt. Partly cloudy. Seas 1 ft or less.

      Low: 79 °F

      SE 15kt
      < 1ft

    • Thursday

      Thursday:SE wind 10 to 12 kt. Sunny. Seas 1 ft or less.

      High: 84 °F

      SE 12kt
      < 1ft

    • Thursday Night

      Thursday Night:E wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.

      Low: 78 °F

      E 9kt⇓
      < 1ft

    • Friday

      Friday:NNE wind 5 to 10 kt increasing to 15 to 20 kt in the afternoon. A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm.   Seas 1 ft or less.

      High: 83 °F

      ⇑NNE 20kt
      < 1ft

    • Friday Night

      Friday Night:NNE wind 19 to 22 kt, with gusts as high as 31 kt. Showers likely and possibly a thunderstorm.   Seas 1 ft or less.

      Low: 73 °F

      NNE 22kt
      < 1ft

    • Saturday

      Saturday:N wind 22 to 24 kt, with gusts as high as 31 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers.   Seas 1 ft or less.

      High: 76 °F

      N 24kt
      < 1ft

    • Saturday Night

      Saturday Night:NNE wind 12 to 18 kt. A chance of showers.   Seas 1 ft or less.

      Low: 72 °F

      NNE 18kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 8:18 pm CDT Oct 13, 2026
Forecast Valid: 8pm CDT Oct 13, 2026-6pm CDT Oct 20, 2026

View Nearby Observations

Detailed Forecast


Tonight
SSE wind 10 to 13 kt. Mostly clear. Seas 1 ft or less.
Wednesday
SE wind 10 to 17 kt. Mostly sunny. Seas 1 ft or less.
Wednesday Night
SE wind 10 to 15 kt. Partly cloudy. Seas 1 ft or less.
Thursday
SE wind 10 to 12 kt. Sunny. Seas 1 ft or less.
Thursday Night
E wind 5 to 9 kt becoming variable and less than 5 kt after midnight. Mostly clear. Seas 1 ft or less.
Friday
NNE wind 5 to 10 kt increasing to 15 to 20 kt in the afternoon. A slight chance of showers, then showers likely and possibly a thunderstorm after 1pm. Seas 1 ft or less.
Friday Night
NNE wind 19 to 22 kt, with gusts as high as 31 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.
Saturday
N wind 22 to 24 kt, with gusts as high as 31 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Seas 1 ft or less.
Saturday Night
NNE wind 12 to 18 kt. A chance of showers. 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: 26.08°N 97.24°W
Last Update: 8:18 pm CDT Oct 13, 2026
Forecast Valid: 8pm CDT Oct 13, 2026-6pm CDT Oct 20, 2026
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