National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

11NM N Grand Isle LA

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:N wind 10 to 15 kt becoming NE after midnight. Partly cloudy. Seas 1 ft or less.

      Low: 45 °F

      N 15kt
      < 1ft

    • Wednesday

      Wednesday:NE wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Seas 1 ft or less.

      High: 62 °F

      NE 10kt
      < 1ft

    • Wednesday Night

      Wednesday Night:E wind 5 to 10 kt. A chance of showers after midnight. Seas 1 ft or less.

      Low: 58 °FRising Temperatures

      E 10kt
      < 1ft

    • Thursday

      Thursday:E wind 10 to 15 kt, with gusts as high as 20 kt. Showers before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers after 3pm. Seas 1 ft or less.

      High: 64 °FFalling Temperatures

      E 15kt
      < 1ft

    • Thursday Night

      Thursday Night:ENE wind 10 to 15 kt. Showers likely. Seas 1 ft or less.

      Low: 58 °FRising Temperatures

      ENE 15kt
      < 1ft

    • Friday

      Friday:N wind 5 to 10 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

      High: 62 °FFalling Temperatures

      N 10kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Showers. Seas 1 ft or less.

      Low: 55 °FRising Temperatures

      Light Wind
      < 1ft

    • Saturday

      Saturday:NNE wind 5 to 10 kt. A chance of showers, with thunderstorms also possible after noon. Seas 1 ft or less.

      High: 62 °FFalling Temperatures

      NNE 10kt
      < 1ft

    • Saturday Night

      Saturday Night:Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.

      Low: 56 °FRising Temperatures

      Light Wind
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:51 am CST Dec 2, 2025
Forecast Valid: 5pm CST Dec 2, 2025-6pm CST Dec 9, 2025

View Nearby Observations

Detailed Forecast


Tonight
N wind 10 to 15 kt becoming NE after midnight. Partly cloudy. Seas 1 ft or less.
Wednesday
NE wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Seas 1 ft or less.
Wednesday Night
E wind 5 to 10 kt. A chance of showers after midnight. Seas 1 ft or less.
Thursday
E wind 10 to 15 kt, with gusts as high as 20 kt. Showers before noon, then showers and possibly a thunderstorm between noon and 3pm, then showers after 3pm. Seas 1 ft or less.
Thursday Night
ENE wind 10 to 15 kt. Showers likely. Seas 1 ft or less.
Friday
N wind 5 to 10 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Showers. Seas 1 ft or less.
Saturday
NNE wind 5 to 10 kt. A chance of showers, with thunderstorms also possible after noon. Seas 1 ft or less.
Saturday Night
Variable winds 5 kt or less. A chance of showers. 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.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

Point Forecast: 29.44°N 89.98°W
Last Update: 11:51 am CST Dec 2, 2025
Forecast Valid: 5pm CST Dec 2, 2025-6pm CST Dec 9, 2025
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data