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

84°F

29°C

Humidity 77%
Wind Speed SW 7 mph
Barometer 29.99 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 31 Jul 12:35 am CDT
Extended Forecast for

Galliano LA

Heat Advisory July 31, 11:00am until July 31, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 81. West wind around 5 mph.

    Low: 81 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 92. Southwest wind 5 to 15 mph.

    High: 92 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 78. Southwest wind 5 to 10 mph.

    Low: 78 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 93. West wind 10 to 15 mph.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. West wind 10 to 15 mph. Chance of precipitation is 50%.

    Low: 77 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 90. West wind 10 to 15 mph. Chance of precipitation is 90%.

    High: 90 °F

    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 76. Southwest wind 5 to 10 mph.

    Low: 76 °F

    Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 92. Southwest wind 5 to 10 mph.

    High: 92 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 77. Southwest wind 5 to 10 mph.

    Low: 77 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 81. West wind around 5 mph.
Friday
Partly sunny, with a high near 92. Southwest wind 5 to 15 mph.
Friday Night
Partly cloudy, with a low around 78. Southwest wind 5 to 10 mph.
Saturday
A 30 percent chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 93. West wind 10 to 15 mph.
Saturday Night
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 77. West wind 10 to 15 mph. Chance of precipitation is 50%.
Sunday
Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. High near 90. West wind 10 to 15 mph. Chance of precipitation is 90%.
Sunday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 76. Southwest wind 5 to 10 mph.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 92. Southwest wind 5 to 10 mph.
Monday Night
Partly cloudy, with a low around 77. Southwest wind 5 to 10 mph.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the morning.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Galliano LA
 29.43°N 90.29°W
Last Update:
12:31 am CDT Jul 31, 2026
Forecast Valid:
12am CDT Jul 31, 2026-6pm CDT Aug 6, 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