11NM N Grand Isle LA

Marine Point Forecast

[NOTICE]
    • This Afternoon

      This Afternoon:E wind 10 to 15 kt. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm.   Seas around 1 ft.

      High: 66 °F

      E 15kt
      1ft

    • Tonight

      Tonight:E wind around 10 kt becoming NW in the evening. Showers and thunderstorms likely before midnight, then a chance of showers and thunderstorms after 1am.   Seas 1 ft or less.

      Low: 54 °F

      E 10kt
      < 1ft

    • Friday

      Friday:N wind 5 to 10 kt. Showers and thunderstorms likely before 3pm, then a chance of showers.   Seas 1 ft or less.

      High: 59 °F

      N 10kt
      < 1ft

    • Friday Night

      Friday Night:Variable winds 5 kt or less. Showers likely, mainly after midnight.   Seas 1 ft or less.

      Low: 55 °F

      Light Wind
      < 1ft

    • Saturday

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

      High: 63 °F

      NNE 10kt
      < 1ft

    • Saturday Night

      Saturday Night:E wind 5 to 10 kt. A chance of showers, with thunderstorms also possible after midnight.   Seas 1 ft or less.

      Low: 58 °F

      E 10kt
      < 1ft

    • Sunday

      Sunday:Variable winds 5 kt or less. A chance of showers before noon.   Seas 1 ft or less.

      High: 67 °F

      Light Wind
      < 1ft

    • Sunday Night

      Sunday Night:N wind 5 to 15 kt, with gusts as high as 25 kt. A slight chance of showers.   Seas 1 ft or less.

      Low: 52 °F

      N 15kt
      < 1ft

    • Monday

      Monday:N wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 1 ft or less.

      High: 58 °F

      N 15kt
      < 1ft


High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 11:32 am CST Dec 4, 2025
Forecast Valid: 1pm CST Dec 4, 2025-6pm CST Dec 10, 2025

View Nearby Observations

Detailed Forecast


This Afternoon
E wind 10 to 15 kt. Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Seas around 1 ft.
Tonight
E wind around 10 kt becoming NW in the evening. Showers and thunderstorms likely before midnight, then a chance of showers and thunderstorms after 1am. Seas 1 ft or less.
Friday
N wind 5 to 10 kt. Showers and thunderstorms likely before 3pm, then a chance of showers. Seas 1 ft or less.
Friday Night
Variable winds 5 kt or less. Showers likely, mainly after midnight. Seas 1 ft or less.
Saturday
NNE wind 5 to 10 kt. Showers. Seas 1 ft or less.
Saturday Night
E wind 5 to 10 kt. A chance of showers, with thunderstorms also possible after midnight. Seas 1 ft or less.
Sunday
Variable winds 5 kt or less. A chance of showers before noon. Seas 1 ft or less.
Sunday Night
N wind 5 to 15 kt, with gusts as high as 25 kt. A slight chance of showers. Seas 1 ft or less.
Monday
N wind 10 to 15 kt, with gusts as high as 25 kt. Mostly sunny. Seas 1 ft or less.

Winds and seas higher in and near thunderstorms.

*Notices:

  1. 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.
  2. 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.
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ABOUT THIS FORECAST

Point Forecast: 29.44°N 89.98°W
Last Update: 11:32 am CST Dec 4, 2025
Forecast Valid: 1pm CST Dec 4, 2025-6pm CST Dec 10, 2025
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