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3NM SW Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 12:00 pm CST Feb 8, 2026
Forecast Valid: 12pm CST Feb 8, 2026-6pm CST Feb 14, 2026

This Afternoon

Variable winds 5 kt or less. Sunny. Seas 1 ft or less.

Tonight

Variable winds 5 kt or less. Patchy fog after 5am. Seas 1 ft or less.

Monday

Variable winds 5 kt or less. Patchy fog before 9am. Seas 1 ft or less.

Monday Night

Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.

Tuesday

Variable winds 5 kt or less. Partly sunny. Seas 1 ft or less.

Tuesday Night

Variable winds 5 kt or less. Mostly cloudy. Seas 1 ft or less.

Wednesday

Variable winds 5 kt or less. A chance of showers. Seas 1 ft or less.

Wednesday Night

Variable winds 5 kt or less. A slight chance of showers. Seas 1 ft or less.

Thursday

Variable winds 5 kt or less. Mostly cloudy. 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.