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

17NM E Grand Isle LA

Marine Point Forecast

[NOTICE]

    • Tonight

      Tonight:N wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

      Low: 41 °F

      N 10kt
      < 1ft

    • Tuesday

      Tuesday:NNE wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas 1 ft or less.

      High: 62 °F

      SSW 10kt
      < 1ft

    • Tuesday Night

      Tuesday Night:SSW wind 10 to 15 kt. Partly cloudy. Seas around 1 ft.

      Low: 57 °FRising Temperatures

      SSW 15kt
      1ft

    • Wednesday

      Wednesday:SSW wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 1 ft.

      High: 71 °F

      SSW 15kt
      1ft

    • Wednesday Night

      Wednesday Night:S wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers before midnight. Seas around 1 ft.

      Low: 62 °FRising Temperatures

      S 15kt
      1ft

    • Thursday

      Thursday:SSW wind around 15 kt, with gusts as high as 20 kt. A slight chance of showers after noon. Seas around 1 ft.

      High: 73 °F

      SSW 15kt
      1ft

    • Thursday Night

      Thursday Night:SSW wind around 10 kt becoming N after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Seas around 1 ft.

      Low: 60 °FRising Temperatures

      SSW 10kt
      1ft

    • Friday

      Friday:NE wind 5 to 10 kt. A chance of showers. Seas around 1 ft.

      High: 70 °F

      NE 10kt
      1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

      Low: 58 °FRising Temperatures

      Light Wind
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:57 pm CST Feb 23, 2026
Forecast Valid: 7pm CST Feb 23, 2026-6pm CST Mar 2, 2026

View Nearby Observations

Detailed Forecast


Tonight
N wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.
Tuesday
NNE wind 5 to 10 kt becoming SSW in the afternoon. Sunny. Seas 1 ft or less.
Tuesday Night
SSW wind 10 to 15 kt. Partly cloudy. Seas around 1 ft.
Wednesday
SSW wind 10 to 15 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 1 ft.
Wednesday Night
S wind 10 to 15 kt, with gusts as high as 20 kt. A slight chance of showers before midnight. Seas around 1 ft.
Thursday
SSW wind around 15 kt, with gusts as high as 20 kt. A slight chance of showers after noon. Seas around 1 ft.
Thursday Night
SSW wind around 10 kt becoming N after midnight. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after midnight. Seas around 1 ft.
Friday
NE wind 5 to 10 kt. A chance of showers. Seas around 1 ft.
Friday Night
Variable winds 5 kt or less. Partly cloudy. Seas around 1 ft.

*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: 29.29°N 89.67°W
Last Update: 4:57 pm CST Feb 23, 2026
Forecast Valid: 7pm CST Feb 23, 2026-6pm CST Mar 2, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data