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17NM E Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 11:32 pm CST Feb 17, 2026
Forecast Valid: 4am CST Feb 18, 2026-6pm CST Feb 24, 2026

Wednesday

SSW wind around 10 kt. Partly sunny. Seas around 1 ft.

Wednesday Night

S wind 5 to 10 kt. Mostly cloudy. Seas 1 ft or less.

Thursday

S wind around 10 kt. Mostly sunny. Seas around 1 ft.

Thursday Night

SSW wind 5 to 10 kt. A chance of showers, mainly after midnight. Seas around 1 ft.

Friday

S wind 5 to 10 kt. A chance of showers. Seas 1 ft or less.

Friday Night

S wind around 10 kt. A slight chance of showers before midnight. Seas around 1 ft.

Saturday

S wind around 10 kt. A chance of showers, mainly after noon. Seas around 1 ft.

Saturday Night

SW wind 10 to 15 kt becoming N after midnight. Winds could gust as high as 25 kt. A chance of showers. Seas around 1 ft.

Sunday

N wind 15 to 20 kt, with gusts as high as 25 kt. Sunny. Seas around 1 ft.

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.