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

52°F

11°C

Humidity 89%
Wind Speed N 3 mph
Barometer 30.00 in
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 5 Dec 1:15 pm CST
Extended Forecast for

South Lafourche Airport LA

  • This Afternoon

    This Afternoon: Showers likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms after 3pm. Cloudy, with a high near 56. North wind around 5 mph becoming calm. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers likely, mainly after 4am. Cloudy, with a steady temperature around 51. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 51 °F

    Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely, mainly before 2pm. Cloudy, with a high near 60. Calm wind becoming north around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 60 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 53. Calm wind. Chance of precipitation is 30%.

    Low: 53 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms before noon. Mostly cloudy, with a high near 71. Calm wind becoming northeast around 5 mph.

    High: 71 °F

    Chance
    T-storms then
    Partly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 48. Light north wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 20 mph.

    Low: 48 °F

    Chance
    Showers then
    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 58. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 58 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41. Northeast wind around 5 mph.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 60. Northeast wind around 5 mph becoming calm in the afternoon.

    High: 60 °F

    Sunny

Detailed Forecast

This Afternoon
Showers likely and possibly a thunderstorm before 3pm, then a chance of showers and thunderstorms after 3pm. Cloudy, with a high near 56. North wind around 5 mph becoming calm. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers likely, mainly after 4am. Cloudy, with a steady temperature around 51. Calm wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Showers likely, mainly before 2pm. Cloudy, with a high near 60. Calm wind becoming north around 5 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
A slight chance of showers, then a chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 53. Calm wind. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms before noon. Mostly cloudy, with a high near 71. Calm wind becoming northeast around 5 mph.
Sunday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 48. Light north wind increasing to 5 to 10 mph in the evening. Winds could gust as high as 20 mph.
Monday
Mostly sunny, with a high near 58. North wind 5 to 10 mph, with gusts as high as 20 mph.
Monday Night
Partly cloudy, with a low around 41. Northeast wind around 5 mph.
Tuesday
Sunny, with a high near 60. Northeast wind around 5 mph becoming calm in the afternoon.
Tuesday Night
Mostly clear, with a low around 42. Calm wind.
Wednesday
Sunny, with a high near 67. Calm wind becoming southwest around 5 mph.
Wednesday Night
Mostly clear, with a low around 51. Calm wind becoming west around 5 mph after midnight.
Thursday
Mostly sunny, with a high near 68. Southwest wind 5 to 10 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:
11:32 am CST Dec 5, 2025
Forecast Valid:
1pm CST Dec 5, 2025-6pm CST Dec 11, 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