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

82°F

28°C

Humidity 48%
Wind Speed W 6 mph
Barometer 30.16 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 11 Oct 11:35 am CDT
Extended Forecast for

3 Miles WSW Grand Isle LA

  • Today

    Today: Sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 77. Southeast wind around 5 mph.

    Low: 77 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 82. East wind 5 to 10 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 77. Southeast wind around 5 mph.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 82. Southeast wind around 5 mph.

    High: 82 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 77. Southeast wind around 5 mph becoming calm after midnight.

    Low: 77 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 82. East wind 5 to 10 mph.

    High: 82 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 77. East wind around 5 mph.

    Low: 77 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 82. East wind 5 to 10 mph.

    High: 82 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 81. Calm wind becoming southeast around 5 mph in the afternoon.
Tonight
Partly cloudy, with a low around 77. Southeast wind around 5 mph.
Columbus Day
Sunny, with a high near 82. East wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 77. Southeast wind around 5 mph.
Tuesday
Sunny, with a high near 82. Southeast wind around 5 mph.
Tuesday Night
Clear, with a low around 77. Southeast wind around 5 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 82. East wind 5 to 10 mph.
Wednesday Night
Clear, with a low around 77. East wind around 5 mph.
Thursday
Sunny, with a high near 82. East wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 77. East wind 5 to 10 mph.
Friday
A slight chance of showers. Sunny, with a high near 83. Northeast wind 5 to 10 mph.
Friday Night
Partly cloudy, with a low around 73. Windy, with an east wind 5 to 10 mph becoming north 20 to 30 mph after midnight.
Saturday
A slight chance of showers. Mostly sunny, with a high near 78. Windy, with a north wind 25 to 30 mph, with gusts as high as 40 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Grand Isle LA
 29.21°N 90.04°W
Last Update:
10:31 am CDT Oct 11, 2026
Forecast Valid:
11am CDT Oct 11, 2026-6pm CDT Oct 17, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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