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

Hazardous Weather Conditions

17NM E Grand Isle LA

Marine Point Forecast

[NOTICE]

    • Overnight

      Overnight:NE wind around 15 kt. Mostly cloudy. Seas 1 ft or less.

      Low: 78 °F

      NE 15kt
      < 1ft

    • Wednesday

      Wednesday:NE wind 15 to 20 kt. Partly sunny. Seas around 1 ft.

      High: 85 °F

      NE 20kt
      1ft

      Small Craft Advisory
      Small Craft Advisory

    • Wednesday Night

      Wednesday Night:ENE wind around 15 kt, with gusts as high as 20 kt. Mostly cloudy. Seas around 1 ft.

      Low: 75 °F

      ENE 15kt
      1ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday

      Thursday:ENE wind 15 to 20 kt, with gusts as high as 30 kt. Showers and thunderstorms likely, mainly before 2pm, then showers likely and possibly a thunderstorm after 5pm. Seas around 1 ft.

      High: 85 °F

      ENE 20kt
      1ft

      Small Craft Advisory
      Small Craft Advisory

    • Thursday Night

      Thursday Night:ENE wind 15 to 20 kt, with gusts as high as 25 kt. Showers and thunderstorms likely. Seas around 1 ft.

      Low: 75 °F

      ENE 20kt
      1ft

      Small Craft Advisory
      Small Craft Advisory

    • Friday

      Friday:Tropical storm conditions possible. Showers and possibly a thunderstorm.

      High: 84 °F

      Tropical Storm Conditions Possible

    • Friday Night

      Friday Night:Tropical storm conditions possible. Showers and possibly a thunderstorm.

      Low: 73 °F

      Tropical Storm Conditions Possible

    • Saturday

      Saturday:Tropical storm conditions possible. Showers and possibly a thunderstorm.

      High: 84 °F

      Tropical Storm Conditions Possible

    • Saturday Night

      Saturday Night:SSE wind 10 to 20 kt, with gusts as high as 30 kt. A chance of showers and thunderstorms. Seas around 1 ft.

      Low: 74 °F

      SSE 20kt
      1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:34 pm CDT Oct 6, 2026
Forecast Valid: 12am CDT Oct 7, 2026-6pm CDT Oct 13, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT EXERCISE CAUTION IN EFFECT THROUGH WEDNESDAY

Overnight
NE wind around 15 kt. Mostly cloudy. Seas 1 ft or less.
Wednesday
NE wind 15 to 20 kt. Partly sunny. Seas around 1 ft.
Wednesday Night
ENE wind around 15 kt, with gusts as high as 20 kt. Mostly cloudy. Seas around 1 ft.
Thursday
ENE wind 15 to 20 kt, with gusts as high as 30 kt. Showers and thunderstorms likely, mainly before 2pm, then showers likely and possibly a thunderstorm after 5pm. Seas around 1 ft.
Thursday Night
ENE wind 15 to 20 kt, with gusts as high as 25 kt. Showers and thunderstorms likely. Seas around 1 ft.
Friday
Tropical storm conditions possible. Showers and possibly a thunderstorm.
Friday Night
Tropical storm conditions possible. Showers and possibly a thunderstorm.
Saturday
Tropical storm conditions possible. Showers and possibly a thunderstorm.
Saturday Night
SSE wind 10 to 20 kt, with gusts as high as 30 kt. A chance of showers and thunderstorms. 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: 11:34 pm CDT Oct 6, 2026
Forecast Valid: 12am CDT Oct 7, 2026-6pm CDT Oct 13, 2026
  Forecast Discussion
  Get as KML Get as XML

RADAR & SATELLITE IMAGES

 Link to Satellite Data