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New Orleans/Baton Rouge, LA Local Forecast Office

17NM E Grand Isle LA

Marine Point Forecast

[NOTICE]

Today
High: 83 °F
ENE 10kt
< 1ft
Tonight
Low: 73 °F
ESE 10kt
< 1ft
Thursday
High: 83 °F
ESE 10kt
< 1ft
Thursday Night
Low: 72 °F
ESE 10kt
< 1ft
Friday
High: 81 °F
NE 10kt
< 1ft
Friday Night
Low: 64 °F
⇑NNE 25kt
< 1ft
Saturday
High: 75 °F
NNE 25kt
1ft
Saturday Night
Low: 67 °F
NE 20kt
< 1ft
Sunday
High: 78 °F
E 20kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 5:29 am CDT Oct 14, 2026
Forecast Valid: 6am CDT Oct 14, 2026-6pm CDT Oct 20, 2026

View Nearby Observations

Detailed Forecast

Today

ENE wind 5 to 10 kt. Patchy fog before 11am. Seas 1 ft or less.

Tonight

ESE wind 5 to 10 kt. Mostly clear. Seas 1 ft or less.

Thursday

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

Thursday Night

ESE wind 5 to 10 kt. Partly cloudy. Seas 1 ft or less.

Friday

NE wind 5 to 10 kt. A slight chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 1pm. Seas 1 ft or less.

Friday Night

Variable winds less than 5 kt becoming NNE 20 to 25 kt after midnight. Winds could gust as high as 35 kt. Partly cloudy. Seas 1 ft or less.

Saturday

NNE wind 20 to 25 kt, with gusts as high as 35 kt. Sunny. Seas around 1 ft.

Saturday Night

NE wind 15 to 20 kt. Mostly clear. Seas 1 ft or less.

Sunday

E wind 15 to 20 kt, with gusts as high as 30 kt. A chance of showers. 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.