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

80°F

27°C

Humidity 89%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 1 Sep 11:35 pm CDT
Extended Forecast for

3 Miles NNW Galliano LA

  • Tonight

    Tonight: Partly cloudy, with a low around 77. Calm wind.

    Low: 77 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly between 3pm and 4pm. Mostly sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 76. Calm wind.

    Low: 76 °F

    Mostly Clear

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 1pm. Sunny, with a high near 91. Calm wind becoming east around 5 mph in the morning. Chance of precipitation is 60%.

    High: 91 °F

    T-storms
    Likely

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly clear, with a low around 75. Calm wind. Chance of precipitation is 40%.

    Low: 75 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 91. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 91 °F

    Showers
    Likely then
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 91 °F

    T-storms
    Likely

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 75. Calm wind.

    Low: 75 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 77. Calm wind.
Wednesday
Showers and thunderstorms likely, mainly between 3pm and 4pm. Mostly sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Mostly clear, with a low around 76. Calm wind.
Thursday
Showers and thunderstorms likely, mainly after 1pm. Sunny, with a high near 91. Calm wind becoming east around 5 mph in the morning. Chance of precipitation is 60%.
Thursday Night
A slight chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly clear, with a low around 75. Calm wind. Chance of precipitation is 40%.
Friday
Showers and possibly a thunderstorm. High near 91. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Calm wind.
Saturday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 75. Calm wind.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. Calm wind.
Labor Day
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 76. Calm wind.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Galliano LA
 29.47°N 90.32°W
Last Update:
6:21 pm CDT Sep 1, 2026
Forecast Valid:
11pm CDT Sep 1, 2026-6pm CDT Sep 8, 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