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

71°F

22°C

Humidity 65%
Wind Speed NE 7 mph
Barometer 30.16 in
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 24 Mar 9:55 am CDT
Extended Forecast for

15 Miles WSW Grand Isle LA

  • Today

    Today: Sunny, with a high near 76. East wind around 5 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 77. Calm wind becoming east around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 63. Southeast wind around 5 mph becoming calm.

    Low: 63 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Calm wind becoming east around 5 mph in the afternoon.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 65. Southeast wind around 5 mph becoming calm.

    Low: 65 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 62. Calm wind becoming northwest around 5 mph after midnight.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 76. North wind 10 to 15 mph.

    High: 76 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 76. East wind around 5 mph.
Tonight
Partly cloudy, with a low around 63. Southeast wind around 5 mph becoming calm.
Wednesday
Sunny, with a high near 77. Calm wind becoming east around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 63. Southeast wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 77. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 65. Southeast wind around 5 mph becoming calm.
Friday
Sunny, with a high near 79. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 62. Calm wind becoming northwest around 5 mph after midnight.
Saturday
Sunny, with a high near 76. North wind 10 to 15 mph.
Saturday Night
Mostly clear, with a low around 62. Northeast wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 75. East wind 10 to 15 mph.
Sunday Night
Mostly cloudy, with a low around 63. East wind around 10 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 76. East wind 10 to 15 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles WSW Grand Isle LA
 29.13°N 90.2°W
Last Update:
5:29 am CDT Mar 24, 2026
Forecast Valid:
10am CDT Mar 24, 2026-6pm CDT Mar 30, 2026
 
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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