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3NM SW Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:02 pm CDT Apr 8, 2026
Forecast Valid: 3pm CDT Apr 8, 2026-6pm CDT Apr 15, 2026

This Afternoon

E wind around 15 kt, with gusts as high as 20 kt. Sunny. Seas around 1 ft.

Tonight

E wind 15 to 20 kt. A chance of showers and thunderstorms, mainly after 4am. Seas around 1 ft.

Thursday

E wind around 20 kt. A slight chance of showers before 1pm. Seas around 1 ft.

Thursday Night

E wind around 15 kt, with gusts as high as 20 kt. Partly cloudy. Seas around 1 ft.

Friday

E wind around 15 kt, with gusts as high as 20 kt. Mostly sunny. Seas around 1 ft.

Friday Night

E wind 10 to 15 kt. Mostly clear. Seas around 1 ft.

Saturday

E wind around 10 kt. Sunny. Seas around 1 ft.

Saturday Night

ESE wind around 10 kt. Mostly clear. Seas around 1 ft.

Sunday

ESE wind 10 to 15 kt. Mostly sunny. 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.