Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Mostly Cloudy

66°F

19°C

Humidity 71%
Wind Speed N 12 G 21 mph
Barometer 30.15 in
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 5 Apr 9:55 pm CDT
Extended Forecast for

15 Miles WSW Grand Isle LA

  • Tonight

    Tonight: A chance of showers before 1am, then a chance of showers after 2am.  Cloudy, with a low around 58. Northeast wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Chance
    Showers

  • Monday

    Monday: Showers likely, mainly before noon.  Cloudy, then gradually becoming mostly sunny, with a high near 70. Breezy, with a northeast wind 15 to 20 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Breezy.
    Showers
    Likely then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: Mostly clear, with a low around 59. Northeast wind around 10 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 75. East wind 10 to 15 mph.

    High: 75 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers after 1am.  Partly cloudy, with a low around 63. East wind 10 to 15 mph.

    Low: 63 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm.  Partly sunny, with a high near 75. Breezy, with an east wind 15 to 25 mph.  Chance of precipitation is 70%.

    High: 75 °F

    Showers
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 65. East wind around 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%.

    Low: 65 °F

    Showers
    Likely

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 77. East wind around 15 mph.

    High: 77 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 66. East wind 10 to 15 mph.

    Low: 66 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers before 1am, then a chance of showers after 2am. Cloudy, with a low around 58. Northeast wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers likely, mainly before noon. Cloudy, then gradually becoming mostly sunny, with a high near 70. Breezy, with a northeast wind 15 to 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Mostly clear, with a low around 59. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 75. East wind 10 to 15 mph.
Tuesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 63. East wind 10 to 15 mph.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 75. Breezy, with an east wind 15 to 25 mph. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 65. East wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 77. East wind around 15 mph.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. East wind 10 to 15 mph.
Friday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 77. East wind 10 to 15 mph.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 66. East wind around 10 mph.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 78. East wind 10 to 15 mph.
Saturday Night
Partly cloudy, with a low around 66. Southeast wind around 10 mph.
Sunday
Mostly sunny, with a high near 79. East wind 10 to 15 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles WSW Grand Isle LA
 29.13°N 90.2°W
5:32 pm CDT Apr 5, 2026
10pm CDT Apr 5, 2026-6pm CDT Apr 12, 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