National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Wind and Rain in the Northeast; Atmospheric River to Impact the West

A cold front will cross the Great Lakes and Northeast U.S. through today with gusty winds and areas of rain showers. A strong atmospheric river is then expected to move into the Northwest by midweek bringing a threat for moderate to heavy rainfall and flooding, gusty winds, and mountain snows for parts of Washington, Oregon, northern California, and the Sierra Nevada. Read More >

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Fair

61°F

16°C

Humidity 50%
Wind Speed N 3 mph
Barometer 30.28 in
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 3 Nov 4:55 pm CST
Extended Forecast for

Grand Isle LA

  • Tonight

    Tonight: Mostly clear, with a low around 63. Northeast wind around 10 mph.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 72. East wind 10 to 15 mph.

    High: 72 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68. East wind 5 to 10 mph.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 75. East wind around 5 mph.

    High: 75 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68. East wind around 5 mph.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 76. East wind 5 to 10 mph.

    High: 76 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 70. Southeast wind 5 to 10 mph.

    Low: 70 °F

    Partly Cloudy

  • Friday

    Friday: A 20 percent chance of showers. Mostly sunny, with a high near 77. South wind around 5 mph.

    High: 77 °F

    Slight Chance
    Showers

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. South wind around 5 mph becoming southwest after midnight.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 63. Northeast wind around 10 mph.
Tuesday
Sunny, with a high near 72. East wind 10 to 15 mph.
Tuesday Night
Mostly clear, with a low around 68. East wind 5 to 10 mph.
Wednesday
Mostly sunny, with a high near 75. East wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 68. East wind around 5 mph.
Thursday
Sunny, with a high near 76. East wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 70. Southeast wind 5 to 10 mph.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 77. South wind around 5 mph.
Friday Night
Mostly clear, with a low around 70. South wind around 5 mph becoming southwest after midnight.
Saturday
Sunny, with a high near 76. West wind around 5 mph becoming southeast in the morning.
Saturday Night
Mostly clear, with a low around 69. South wind around 5 mph becoming northwest after midnight.
Sunday
Sunny, with a high near 75. North wind around 5 mph.
Sunday Night
Mostly clear, with a low around 60. Breezy, with a north wind 5 to 10 mph increasing to 15 to 20 mph after midnight.
Monday
Sunny, with a high near 67. Breezy, with a north wind 15 to 20 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grand Isle LA
 29.23°N 89.99°W
Last Update:
4:56 pm CST Nov 3, 2025
Forecast Valid:
5pm CST Nov 3, 2025-6pm CST Nov 10, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation