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3NM SW Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 11:31 pm CST Jan 12, 2026
Forecast Valid: 8am CST Jan 13, 2026-6pm CST Jan 19, 2026

Today

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

Tonight

Variable winds less than 5 kt becoming WNW 5 to 10 kt after midnight. A chance of showers, mainly between 1am and 3am. Seas 1 ft or less.

Wednesday

W wind 10 to 15 kt. Mostly sunny. Seas around 1 ft.

Wednesday Night

W wind 15 to 20 kt becoming N after midnight. Winds could gust as high as 25 kt. Partly cloudy. Seas around 1 ft.

Thursday

N wind 10 to 20 kt, with gusts as high as 25 kt. Sunny. Seas 1 ft or less.

Thursday Night

N wind 5 to 10 kt becoming S after midnight. Mostly clear. Seas 1 ft or less.

Friday

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

Friday Night

SW wind around 10 kt becoming NNW after midnight. Partly cloudy. Seas 1 ft or less.

Saturday

NNW 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.