National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Fair

85°F

29°C

Humidity 67%
Wind Speed SW 7 mph
Barometer 30.02 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 19 Aug 9:15 pm CDT
Extended Forecast for

South Lafourche Airport LA

Heat Advisory August 20, 11:00am until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 76. West wind around 5 mph.

    Low: 76 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 94. West wind 5 to 10 mph.

    High: 94 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 77. Southwest wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. West wind around 5 mph.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. West wind around 5 mph becoming southwest in the afternoon.

    High: 93 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 76. West wind around 5 mph.
Thursday
Mostly sunny, with a high near 94. West wind 5 to 10 mph.
Thursday Night
Mostly clear, with a low around 77. Southwest wind 5 to 10 mph.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. West wind around 5 mph.
Friday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. West wind around 5 mph becoming southwest in the afternoon.
Saturday Night
Partly cloudy, with a low around 76. Southwest wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Monday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny and hot, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms. Sunny, with a high near 94. Calm wind becoming west around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.
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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 pm CDT Aug 19, 2026
Forecast Valid:
9pm CDT Aug 19, 2026-6pm CDT Aug 26, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation