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.

Mostly Cloudy

85°F

29°C

Humidity 70%
Wind Speed S 6 mph
Barometer 30.05 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index93°F (34°C)
Last update 15 Jun 6:55 pm CDT
Extended Forecast for

Galliano LA

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening.

    Low: 76 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Showers and thunderstorms likely, mainly before 5pm. Mostly sunny, with a high near 90. Light south wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 90 °F

    T-storms
    Likely

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 76 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 90. South wind 5 to 10 mph. Chance of precipitation is 80%.

    High: 90 °F

    Showers
    Likely then
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. South wind around 5 mph. Chance of precipitation is 30%.

    Low: 78 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 90. South wind 5 to 10 mph. Chance of precipitation is 60%.

    High: 90 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South wind around 5 mph.

    Low: 77 °F

    Slight Chance
    T-storms

  • Juneteenth

    Juneteenth: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 92. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 60%.

    High: 92 °F

    T-storms
    Likely

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening.
Monday
Showers and thunderstorms likely, mainly before 5pm. Mostly sunny, with a high near 90. Light south wind becoming southwest 5 to 10 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 76. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Tuesday
Showers and possibly a thunderstorm. High near 90. South wind 5 to 10 mph. Chance of precipitation is 80%.
Tuesday Night
A chance of thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. South wind around 5 mph. Chance of precipitation is 30%.
Wednesday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 90. South wind 5 to 10 mph. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South wind around 5 mph.
Juneteenth
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 92. Light south wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 60%.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South wind around 5 mph becoming calm in the evening.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 91. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 77. South wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Sunny, with a high near 92. Southeast wind 5 to 10 mph.
Saturday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 78. Southeast wind 5 to 10 mph.
Sunday
A chance of showers and thunderstorms. Sunny, with a high near 92. East wind 5 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Galliano LA
 29.45°N 90.29°W
Last Update:
6:21 pm CDT Jun 15, 2025
Forecast Valid:
7pm CDT Jun 15, 2025-6pm CDT Jun 22, 2025
 
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