For More Weather Information:

New Orleans/Baton Rouge, LA Local Forecast Office

11NM N Grand Isle LA

Marine Point Forecast

[NOTICE]

Saturday
High: 83 °F
ESE 10kt
< 1ft
Saturday Night
Low: 74 °F
E 10kt
< 1ft
Sunday
High: 83 °F
Light Wind
< 1ft
Sunday Night
Low: 73 °F
NNE 10kt
< 1ft
Monday
High: 82 °F
NE 15kt
< 1ft
Monday Night
Low: 73 °F
NE 15kt
< 1ft
Tuesday
High: 82 °F
NE 15kt
< 1ft
Tuesday Night
Low: 74 °F
NE 15kt
< 1ft
Wednesday
High: 80 °F
NE 20kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:18 am CDT Oct 3, 2026
Forecast Valid: 4am CDT Oct 3, 2026-6pm CDT Oct 9, 2026

View Nearby Observations

Detailed Forecast

Saturday

ESE wind around 10 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Saturday Night

E wind 5 to 10 kt. Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 2am, then showers likely and possibly a thunderstorm after 2am. Seas 1 ft or less.

Sunday

Variable winds 5 kt or less. Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. Seas 1 ft or less.

Sunday Night

NNE wind 5 to 10 kt. A chance of showers and thunderstorms, then showers likely after 7pm. Seas 1 ft or less.

Monday

NE wind 10 to 15 kt. A chance of showers, with thunderstorms also possible after 1pm. Seas 1 ft or less.

Monday Night

NE wind 10 to 15 kt. A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Seas 1 ft or less.

Tuesday

NE wind around 15 kt. Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Seas 1 ft or less.

Tuesday Night

NE wind 10 to 15 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Wednesday

NE wind around 20 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms. Seas around 1 ft.

Winds and seas higher in and near thunderstorms.

*Notices:

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.
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.