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

70°F

21°C

Humidity 88%
Wind Speed S 2 mph
Barometer 30.09 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 11 Oct 8:15 pm CDT
Extended Forecast for

15 Miles WSW Grand Isle LA

  • Tonight

    Tonight: Partly cloudy, with a low around 75. Southeast wind around 5 mph.

    Low: 75 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 84. East wind 5 to 10 mph.

    High: 84 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75. Southeast wind around 5 mph.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83. Southeast wind 5 to 10 mph.

    High: 83 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. Southeast wind around 5 mph.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 84. East wind 5 to 10 mph.

    High: 84 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 74. East wind 5 to 10 mph.

    Low: 74 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 84. East wind 5 to 10 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74. East wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 75. Southeast wind around 5 mph.
Columbus Day
Sunny, with a high near 84. East wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 75. Southeast wind around 5 mph.
Tuesday
Sunny, with a high near 83. Southeast wind 5 to 10 mph.
Tuesday Night
Mostly clear, with a low around 74. Southeast wind around 5 mph.
Wednesday
Sunny, with a high near 84. East wind 5 to 10 mph.
Wednesday Night
Clear, with a low around 74. East wind 5 to 10 mph.
Thursday
Sunny, with a high near 84. East wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 74. East wind 5 to 10 mph.
Friday
A slight chance of showers before 1pm. Sunny, with a high near 85. Northeast wind around 10 mph.
Friday Night
A slight chance of showers. Partly cloudy, with a low around 68. Windy, with a north wind 5 to 15 mph increasing to 20 to 30 mph.
Saturday
Mostly sunny, with a high near 78. Windy, with a north wind 25 to 30 mph, with gusts as high as 40 mph.
Saturday Night
Partly cloudy, with a low around 66. Windy, with a northeast wind 25 to 30 mph.
Sunday
A slight chance of showers. Mostly sunny, with a high near 78. Breezy, with a northeast wind around 25 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles WSW Grand Isle LA
 29.1°N 90.2°W
Last Update:
5:01 pm CDT Oct 11, 2026
Forecast Valid:
8pm CDT Oct 11, 2026-6pm CDT Oct 18, 2026
 
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Additional Resources

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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