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Brownsville, TX Local Forecast Office

5NM NW Port Isabel TX

Marine Point Forecast

[NOTICE]
    • Today

      Today:SSE wind 34 to 37 km/h, with gusts as high as 50 km/h. Partly sunny. Seas 1 m or less.

      High: 27 °C

      SSE 37km/h
      < 1m

    • Tonight

      Tonight:SSE wind 27 to 35 km/h, with gusts as high as 48 km/h. Mostly cloudy. Seas 1 m or less.

      Low: 22 °C

      SSE 35km/h
      < 1m

    • Wednesday

      Wednesday:S wind 18 to 27 km/h becoming NNW in the afternoon. Winds could gust as high as 37 km/h. Mostly cloudy, then gradually becoming sunny. Seas 1 m or less.

      High: 29 °C

      S 27km/h
      < 1m

    • Wednesday Night

      Wednesday Night:ESE wind 8 to 13 km/h becoming N 19 to 24 km/h after midnight. Winds could gust as high as 32 km/h. Mostly clear. Seas 1 m or less.

      Low: 18 °C

      ⇑N 24km/h
      < 1m

    • Thursday

      Thursday:N wind 32 to 37 km/h, with gusts as high as 45 km/h. Sunny. Seas 1 m or less.

      High: 22 °C

      N 37km/h
      < 1m

    • Thursday Night

      Thursday Night:NE wind 19 to 24 km/h decreasing to 8 to 13 km/h after midnight. Winds could gust as high as 32 km/h. Mostly clear. Seas 1 m or less.

      Low: 16 °C

      NE 24km/h⇓
      < 1m

    • Friday

      Friday:Variable winds less than 5 km/h becoming ESE 13 to 18 km/h in the afternoon. Sunny. Seas 1 m or less.

      High: 23 °C

      ⇑ESE 18km/h
      < 1m

    • Friday Night

      Friday Night:SE wind 14 to 21 km/h. Clear. Seas 1 m or less.

      Low: 19 °C

      SE 21km/h
      < 1m

    • Saturday

      Saturday:SSE wind 13 to 18 km/h increasing to 22 to 27 km/h in the afternoon. Winds could gust as high as 34 km/h. Sunny. Seas 1 m or less.

      High: 26 °C

      ⇑SSE 27km/h
      < 1m


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 10:00 am CDT Mar 10, 2026
Forecast Valid: 10am CDT Mar 10, 2026-6pm CDT Mar 16, 2026

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Detailed Forecast


Today
SSE wind 34 to 37 km/h, with gusts as high as 50 km/h. Partly sunny. Seas 1 m or less.
Tonight
SSE wind 27 to 35 km/h, with gusts as high as 48 km/h. Mostly cloudy. Seas 1 m or less.
Wednesday
S wind 18 to 27 km/h becoming NNW in the afternoon. Winds could gust as high as 37 km/h. Mostly cloudy, then gradually becoming sunny. Seas 1 m or less.
Wednesday Night
ESE wind 8 to 13 km/h becoming N 19 to 24 km/h after midnight. Winds could gust as high as 32 km/h. Mostly clear. Seas 1 m or less.
Thursday
N wind 32 to 37 km/h, with gusts as high as 45 km/h. Sunny. Seas 1 m or less.
Thursday Night
NE wind 19 to 24 km/h decreasing to 8 to 13 km/h after midnight. Winds could gust as high as 32 km/h. Mostly clear. Seas 1 m or less.
Friday
Variable winds less than 5 km/h becoming ESE 13 to 18 km/h in the afternoon. Sunny. Seas 1 m or less.
Friday Night
SE wind 14 to 21 km/h. Clear. Seas 1 m or less.
Saturday
SSE wind 13 to 18 km/h increasing to 22 to 27 km/h in the afternoon. Winds could gust as high as 34 km/h. Sunny. Seas 1 m 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: 10:00 am CDT Mar 10, 2026
Forecast Valid: 10am CDT Mar 10, 2026-6pm CDT Mar 16, 2026
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