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

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Fair

64°F

18°C

Humidity 68%
Wind Speed E 3 mph
Barometer 30.15 in
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 9 Nov 5:35 pm CST
Extended Forecast for

4 Miles WSW Grand Isle LA

  • Tonight

    Tonight: Partly cloudy, with a low around 68. Northeast wind 5 to 10 mph.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75. Northeast wind 5 to 10 mph becoming light and variable in the afternoon.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 69. Calm wind becoming northwest around 5 mph after midnight.

    Low: 69 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 75. North wind around 5 mph becoming southwest in the afternoon.

    High: 75 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 68. Southwest wind 5 to 15 mph becoming northwest after midnight.

    Low: 68 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 75. Northwest wind around 15 mph.

    High: 75 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. Breezy, with a north wind 15 to 20 mph.

    Low: 62 °F

    Partly Cloudy
    and Breezy

  • Friday

    Friday: Sunny, with a high near 69. North wind 10 to 15 mph.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 59. North wind 10 to 15 mph.

    Low: 59 °F

    Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 68. Northeast wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 75. Northeast wind 5 to 10 mph becoming light and variable in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 69. Calm wind becoming northwest around 5 mph after midnight.
Veterans Day
Partly sunny, with a high near 75. North wind around 5 mph becoming southwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 68. Southwest wind 5 to 15 mph becoming northwest after midnight.
Thursday
Partly sunny, with a high near 75. Northwest wind around 15 mph.
Thursday Night
Partly cloudy, with a low around 62. Breezy, with a north wind 15 to 20 mph.
Friday
Sunny, with a high near 69. North wind 10 to 15 mph.
Friday Night
Clear, with a low around 59. North wind 10 to 15 mph.
Saturday
Sunny, with a high near 67. Northeast wind 10 to 15 mph.
Saturday Night
Mostly clear, with a low around 62. East wind 10 to 15 mph.
Sunday
A slight chance of showers. Mostly sunny, with a high near 71. East wind around 15 mph.
Sunday Night
Partly cloudy, with a low around 67. East wind around 15 mph.
Monday
Mostly sunny, with a high near 73. East wind around 15 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Grand Isle LA
 29.21°N 90.04°W
Last Update:
4:02 pm CST Nov 9, 2026
Forecast Valid:
5pm CST Nov 9, 2026-6pm CST Nov 16, 2026
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation