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3NM SW Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 2:17 am CST Jan 27, 2026
Forecast Valid: 9am CST Jan 27, 2026-6pm CST Feb 2, 2026

Today

NNE wind 5 to 10 kt becoming variable and less than 5 kt in the afternoon. Sunny. Seas 1 ft or less.

Tonight

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

Wednesday

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

Wednesday Night

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

Thursday

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

Thursday Night

SE wind 5 to 10 kt becoming W after midnight. A chance of showers after midnight. Seas 1 ft or less.

Friday

NW wind 10 to 20 kt becoming N in the morning. Showers likely, mainly before noon. Seas around 1 ft.

Friday Night

N wind 20 to 30 kt. A slight chance of showers. Seas around 1 ft.

Saturday

N wind 20 to 25 kt, with gusts as high as 30 kt. Sunny. Seas around 1 ft.

*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.