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.

Overcast

69°F

21°C

Humidity 89%
Wind Speed NE 5 mph
Barometer 29.97 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 12 May 4:55 am CDT
Extended Forecast for

South Lafourche Airport LA

  • Today

    Today: A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 80. Northeast wind around 10 mph. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.

    Low: 68 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. North wind around 5 mph.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 67. Calm wind.

    Low: 67 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 71. South wind around 5 mph becoming calm.

    Low: 71 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 83. Light southeast wind becoming south 5 to 10 mph in the morning.

    High: 83 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. South wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 84. Light southeast wind increasing to 5 to 10 mph in the morning.

    High: 84 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 80. Northeast wind around 10 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 68. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 84. North wind around 5 mph.
Wednesday Night
Clear, with a low around 67. Calm wind.
Thursday
Sunny, with a high near 84. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 71. South wind around 5 mph becoming calm.
Friday
Sunny, with a high near 83. Light southeast wind becoming south 5 to 10 mph in the morning.
Friday Night
Mostly clear, with a low around 71. South wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 84. Light southeast wind increasing to 5 to 10 mph in the morning.
Saturday Night
Partly cloudy, with a low around 73. Southeast wind around 5 mph.
Sunday
Mostly sunny, with a high near 85. Southeast wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 76. Southeast wind 5 to 10 mph.
Monday
Partly sunny, with a high near 86. Southeast wind 5 to 15 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:
2:02 am CDT May 12, 2026
Forecast Valid:
5am CDT May 12, 2026-6pm CDT May 18, 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