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

59°F

15°C

Humidity 92%
Wind Speed N 3 mph
Barometer 30.00 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 15 Oct 6:55 am CDT
Extended Forecast for

13 Miles WSW Grand Isle LA

  • Today

    Today: Sunny, with a high near 84. Northeast wind 5 to 10 mph.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 69. East wind around 5 mph.

    Low: 69 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 83. East wind 5 to 10 mph.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 70. East wind around 5 mph.

    Low: 70 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 84. East wind 5 to 10 mph.

    High: 84 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. East wind 5 to 10 mph.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Southeast wind 5 to 10 mph.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. Southeast wind around 5 mph.

    Low: 71 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers before 1pm. Mostly sunny, with a high near 84. West wind 5 to 10 mph becoming north in the afternoon.

    High: 84 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 84. Northeast wind 5 to 10 mph.
Tonight
Mostly clear, with a low around 69. East wind around 5 mph.
Thursday
Sunny, with a high near 83. East wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 70. East wind around 5 mph.
Friday
Mostly sunny, with a high near 84. East wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 71. East wind 5 to 10 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. Southeast wind 5 to 10 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71. Southeast wind around 5 mph.
Sunday
A chance of showers before 1pm. Mostly sunny, with a high near 84. West wind 5 to 10 mph becoming north in the afternoon.
Sunday Night
Mostly clear, with a low around 67. Northeast wind around 5 mph.
Monday
Sunny, with a high near 82. East wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 68. East wind around 5 mph.
Tuesday
Sunny, with a high near 82. East wind 5 to 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles WSW Grand Isle LA
 29.15°N 90.17°W
Last Update:
6:11 am CDT Oct 15, 2025
Forecast Valid:
7am CDT Oct 15, 2025-6pm CDT Oct 21, 2025
 
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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