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17NM E Grand Isle LA

[NOTICE]

High and low forecast temperature values represent air temperature.

Last Update: 11:20 pm CST Dec 1, 2025
Forecast Valid: 12am CST Dec 2, 2025-6pm CST Dec 8, 2025

Overnight

NNW wind 10 to 15 kt, with gusts as high as 25 kt. A chance of showers before 3am. Seas around 1 ft.

Tuesday

NNW wind around 15 kt, with gusts as high as 25 kt. Cloudy through mid morning, then gradual clearing. Seas 1 ft or less.

Tuesday Night

N wind around 10 kt becoming NE after midnight. Partly cloudy. Seas 1 ft or less.

Wednesday

NE wind 5 to 10 kt becoming E in the afternoon. Mostly sunny. Seas 1 ft or less.

Wednesday Night

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

Thursday

E wind around 10 kt. Showers and possibly a thunderstorm. Seas 1 ft or less.

Thursday Night

E wind around 10 kt becoming NNE after midnight. Showers likely and possibly a thunderstorm. Seas around 1 ft.

Friday

N wind around 10 kt. Showers likely and possibly a thunderstorm. Seas 1 ft or less.

Friday Night

NNE wind 5 to 10 kt. Showers likely. Seas 1 ft or less.

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.