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.

Mostly Cloudy

84°F

29°C

Humidity 84%
Wind Speed E 12 G 18 mph
Barometer 29.95 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 3 Oct 10:15 am CDT
Extended Forecast for

South Lafourche Airport LA

  • Today

    Today: Showers and possibly a thunderstorm. High near 84. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 84 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 3am, then showers likely and possibly a thunderstorm after 3am. Low around 72. East wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 84. Southeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 84 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 50%.

    Low: 71 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 83. Northeast wind 5 to 10 mph. Chance of precipitation is 50%.

    High: 83 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 70. Northeast wind around 5 mph. Chance of precipitation is 40%.

    Low: 70 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Northeast wind around 10 mph.

    High: 82 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69. Northeast wind 5 to 10 mph.

    Low: 69 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms. Partly sunny, with a high near 83. Breezy, with a northeast wind 15 to 20 mph.

    High: 83 °F

    Chance
    T-storms and
    Breezy

Detailed Forecast

Today
Showers and possibly a thunderstorm. High near 84. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 3am, then showers likely and possibly a thunderstorm after 3am. Low around 72. East wind around 5 mph becoming calm. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and possibly a thunderstorm, mainly before 4pm, then a chance of showers and thunderstorms after 4pm. High near 84. Southeast wind around 5 mph becoming calm in the afternoon. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Calm wind becoming north around 5 mph after midnight. Chance of precipitation is 50%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 83. Northeast wind 5 to 10 mph. Chance of precipitation is 50%.
Monday Night
A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 70. Northeast wind around 5 mph. Chance of precipitation is 40%.
Tuesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82. Northeast wind around 10 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Mostly cloudy, with a low around 69. Northeast wind 5 to 10 mph.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Breezy, with a northeast wind 15 to 20 mph.
Wednesday Night
Partly cloudy, with a low around 68. Northeast wind 10 to 15 mph.
Thursday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 83. Breezy, with a northeast wind around 20 mph, with gusts as high as 30 mph.
Thursday Night
A slight chance of showers. Mostly cloudy, with a low around 68. Northeast wind 10 to 15 mph.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 83. Breezy, with a northeast wind 15 to 20 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Lafourche Airport LA
 29.45°N 90.27°W
Last Update:
8:03 am CDT Oct 3, 2026
Forecast Valid:
10am CDT Oct 3, 2026-6pm CDT Oct 9, 2026
 
Forecast Discussion
 
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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