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New Orleans/Baton Rouge, LA Local Forecast Office

17NM E Grand Isle LA

Marine Point Forecast

[NOTICE]

Tonight
Low: 77 °F
E 15kt
1ft

Small Craft Advisory
Thursday
High: 86 °F
E 20kt
1ft

Small Craft Advisory
Thursday Night
Low: 76 °F
E 20kt
1ft

Small Craft Advisory
Friday
High: 87 °F
ESE 15kt
1ft

Small Craft Advisory
Friday Night
Low: 77 °F
SE 15kt
1ft
Saturday
High: 88 °F
S 10kt
1ft
Saturday Night
Low: 79 °F
S 10kt
1ft
Sunday
High: 88 °F
S 10kt
< 1ft
Sunday Night
Low: 79 °F
S 10kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:51 pm CDT Jun 3, 2026
Forecast Valid: 7pm CDT Jun 3, 2026-6pm CDT Jun 10, 2026

View Nearby Observations

Detailed Forecast

...SMALL CRAFT ADVISORY IN EFFECT THROUGH FRIDAY EVENING...

Tonight

E wind around 15 kt, with gusts as high as 25 kt. Showers and possibly a thunderstorm. Seas around 1 ft.

Thursday

E wind 15 to 20 kt. A chance of showers and thunderstorms before 11am, then showers likely and possibly a thunderstorm between 11am and noon, then a chance of showers and thunderstorms after noon. Seas around 1 ft.

Thursday Night

E wind 15 to 20 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Seas around 1 ft.

Friday

ESE wind around 15 kt, with gusts as high as 20 kt. Showers and possibly a thunderstorm. Seas around 1 ft.

Friday Night

SE wind 10 to 15 kt. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Seas around 1 ft.

Saturday

S wind around 10 kt. Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Seas around 1 ft.

Saturday Night

S wind 5 to 10 kt. A slight chance of showers and thunderstorms after 1am. Seas around 1 ft.

Sunday

S wind 5 to 10 kt. A slight chance of showers and thunderstorms before 1pm. Seas 1 ft or less.

Sunday Night

S wind 5 to 10 kt. Mostly cloudy. 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.