Marine Point Forecast 29.61°N 89.63°W (Text-Only)
NWS Forecast for: 29NM NE Grand Isle LA
Gulf of Mexico

Issued by: National Weather Service New Orleans/Baton Rouge, LA
Last Update: 1:46 pm CDT Mar 8, 2026




This Afternoon: Variable winds 5 kt or less. A chance of showers and thunderstorms, mainly before 4pm. Seas around 1 ft.

Tonight: Variable winds 5 kt or less. A slight chance of showers and thunderstorms before 9pm. Patchy fog after 2am. Seas 1 ft or less.

Monday: SSE wind 5 to 10 kt. Patchy fog before noon. Seas 1 ft or less.

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

Tuesday: SSE wind 5 to 10 kt. Partly sunny. Seas 1 to 2 ft.

Tuesday Night: SSE wind 10 to 15 kt. Mostly cloudy. Seas 2 to 3 ft.

Wednesday: SSE wind 10 to 20 kt. A chance of showers and thunderstorms after 1pm. Seas 3 to 4 ft.

Wednesday Night: SW wind 15 to 20 kt becoming N 25 to 30 kt after midnight. Winds could gust as high as 35 kt. Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Seas 4 ft building to 7 ft.

Thursday: NNE wind 25 to 30 kt decreasing to 20 to 25 kt in the afternoon. Winds could gust as high as 40 kt. A slight chance of showers before 1pm. Seas 7 ft subsiding to 4 ft.



Marine Point Forecast: 29.61°N 89.63°W
Associated Zone Forecast which includes this point

Visit your local NWS office at: https://www.weather.gov/lix