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New Orleans/Baton Rouge, LA Local Forecast Office

11NM N Grand Isle LA

Marine Point Forecast

[NOTICE]

This Afternoon
High: 84 °F
S 10kt
< 1ft
Tonight
Low: 81 °F
S 10kt
< 1ft
Sunday
High: 84 °F
S 10kt
< 1ft
Sunday Night
Low: 81 °F
SSE 10kt
< 1ft
Monday
High: 84 °F
SE 10kt
< 1ft
Monday Night
Low: 81 °F
ESE 10kt
< 1ft
Tuesday
High: 84 °F
ESE 10kt
< 1ft
Tuesday Night
Low: 79 °F
SE 10kt
< 1ft
Wednesday
High: 84 °F
ESE 10kt
< 1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 1:26 pm CDT Jun 6, 2026
Forecast Valid: 1pm CDT Jun 6, 2026-6pm CDT Jun 12, 2026

View Nearby Observations

Detailed Forecast

This Afternoon

S wind around 10 kt. Showers and thunderstorms likely before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. Seas 1 ft or less.

Tonight

S wind around 10 kt. A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Seas 1 ft or less.

Sunday

S wind around 10 kt. A chance of showers and thunderstorms, mainly before 3pm. Seas 1 ft or less.

Sunday Night

SSE wind around 10 kt. A slight chance of showers and thunderstorms before 7pm. Seas 1 ft or less.

Monday

SE wind 5 to 10 kt. Partly sunny. Seas 1 ft or less.

Monday Night

ESE wind 5 to 10 kt. Mostly cloudy. Seas 1 ft or less.

Tuesday

ESE wind 5 to 10 kt. Mostly sunny. Seas 1 ft or less.

Tuesday Night

SE wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Wednesday

ESE wind 5 to 10 kt. Sunny. Seas 1 ft or less.

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.