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3NM SW Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 3:09 pm CST Jan 7, 2026
Forecast Valid: 5pm CST Jan 7, 2026-6pm CST Jan 14, 2026

Tonight

SSW wind 5 to 10 kt becoming SE after midnight. Patchy fog after 3am. Seas 1 ft or less.

Thursday

SSE wind around 10 kt. Patchy fog between 7am and 8am. Seas around 1 ft.

Thursday Night

SSE wind 10 to 15 kt. A chance of showers. Seas around 1 ft.

Friday

SSE wind 10 to 15 kt. A chance of showers and thunderstorms. Seas around 1 ft.

Friday Night

S wind 10 to 15 kt. Showers likely and possibly a thunderstorm. Seas around 1 ft.

Saturday

SW wind 10 to 15 kt becoming NNW in the afternoon. Winds could gust as high as 20 kt. Showers likely and possibly a thunderstorm. Seas around 1 ft.

Saturday Night

N wind 20 to 25 kt, with gusts as high as 30 kt. A chance of showers, mainly before midnight. Seas around 1 ft.

Sunday

N wind 15 to 25 kt. Mostly cloudy. Seas around 1 ft.

Sunday Night

NNE wind 15 to 20 kt. Mostly cloudy. 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.