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3NM SW Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 11:18 pm CST Dec 26, 2025
Forecast Valid: 1am CST Dec 27, 2025-6pm CST Jan 2, 2026

Saturday

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

Saturday Night

Variable winds 5 kt or less. Patchy fog after 10pm. Seas 1 ft or less.

Sunday

SSE wind 5 to 10 kt. Patchy fog before 7am. Seas around 1 ft.

Sunday Night

S wind 5 to 10 kt becoming WSW after midnight. A chance of showers, then showers likely and possibly a thunderstorm after midnight. Seas around 1 ft.

Monday

W wind 10 to 20 kt becoming N in the morning. A chance of showers, mainly before noon. Seas around 1 ft.

Monday Night

N wind 20 to 25 kt. Partly cloudy. Seas around 1 ft.

Tuesday

N wind 10 to 20 kt. Mostly sunny. Seas 1 ft or less.

Tuesday Night

N wind around 10 kt. Mostly clear. Seas 1 ft or less.

Wednesday

NNE wind 5 to 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.