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11NM N Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 4:52 am CST Nov 18, 2025
Forecast Valid: 8am CST Nov 18, 2025-6pm CST Nov 24, 2025

Today

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

Tonight

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

Wednesday

Variable winds 5 kt or less. Patchy fog between 7am and 9am. Seas 1 ft or less.

Wednesday Night

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

Thursday

ESE wind 5 to 10 kt. Patchy fog between 7am and 8am. Seas 1 ft or less.

Thursday Night

SSE wind around 10 kt. A chance of showers after midnight. Seas 1 ft or less.

Friday

S wind around 10 kt. A chance of showers. Seas 1 ft or less.

Friday Night

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

Saturday

Variable winds 5 kt or less. Mostly 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.