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New Orleans/Baton Rouge, LA Local Forecast Office

17NM E Grand Isle LA

Marine Point Forecast

[NOTICE]

Sunday
High: 86 °F
SE 10kt
1ft
Sunday Night
Low: 74 °F
Light Wind
< 1ft
Monday
High: 85 °F
NE 10kt
< 1ft
Monday Night
Low: 74 °F
NNE 10kt
< 1ft
Tuesday
High: 85 °F
NE 15kt
< 1ft
Tuesday Night
Low: 74 °F
NE 15kt
< 1ft
Wednesday
High: 85 °F
ENE 20kt
< 1ft
Wednesday Night
Low: 75 °F
ENE 15kt
< 1ft
Thursday
High: 85 °F
ENE 20kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:58 am CDT Oct 4, 2026
Forecast Valid: 4am CDT Oct 4, 2026-6pm CDT Oct 10, 2026

View Nearby Observations

Detailed Forecast

Sunday

SE wind 5 to 10 kt becoming SSW in the afternoon. Showers and possibly a thunderstorm. Seas around 1 ft.

Sunday Night

Variable winds 5 kt or less. Showers and thunderstorms likely, mainly before midnight. Seas 1 ft or less.

Monday

NE wind around 10 kt. Showers and thunderstorms likely, mainly before 8am, then showers likely and possibly a thunderstorm after 1pm. Seas 1 ft or less.

Monday Night

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

Tuesday

NE wind 10 to 15 kt. Showers likely and possibly a thunderstorm. 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

ENE wind 15 to 20 kt. A chance of showers and thunderstorms. Seas 1 ft or less.

Wednesday Night

ENE wind around 15 kt, with gusts as high as 25 kt. A chance of showers and thunderstorms, mainly after 1am. Seas 1 ft or less.

Thursday

ENE wind 15 to 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.