For More Weather Information:

15NM W Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 9:01 am CDT Oct 17, 2026
Forecast Valid: 12pm CDT Oct 17, 2026-6pm CDT Oct 23, 2026

...GALE WARNING IN EFFECT THROUGH THIS EVENING...

This Afternoon

NNE wind around 20 kt, with gusts as high as 25 kt. Sunny. Seas around 1 ft.

Tonight

NE wind 15 to 20 kt. Mostly clear. Seas 1 ft or less.

Sunday

ENE wind around 20 kt. Mostly sunny. Seas 1 ft or less.

Sunday Night

ENE wind around 15 kt, with gusts as high as 20 kt. Increasing clouds. Seas 1 ft or less.

Monday

NE wind 15 to 20 kt. Mostly sunny. Seas 1 ft or less.

Monday Night

ENE wind around 15 kt. Partly cloudy. Seas 1 ft or less.

Tuesday

ENE wind around 15 kt. Sunny. Seas 1 ft or less.

Tuesday Night

ENE wind 5 to 10 kt. Clear. Seas 1 ft or less.

Wednesday

NE wind around 10 kt. Sunny. Seas 1 ft or less.

*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.