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

75°F

24°C

Humidity 34%
Wind Speed E 6 mph
Barometer 30.11 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 10 Nov 2:55 pm CST
Extended Forecast for

5 Miles WSW Grand Isle LA

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. Calm wind becoming northwest around 5 mph after midnight.

    Low: 62 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: A slight chance of sprinkles before 9am. Partly sunny, with a high near 75. Northwest wind around 5 mph becoming south in the afternoon.

    High: 75 °F

    Slight Chance
    Sprinkles

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 63. West wind 5 to 10 mph.

    Low: 63 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 76. Northwest wind 10 to 15 mph.

    High: 76 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 59. North wind 10 to 15 mph.

    Low: 59 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 68. North wind 10 to 15 mph.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 59. Northeast wind 10 to 15 mph.

    Low: 59 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 67. Northeast wind 10 to 15 mph.

    High: 67 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 62. East wind 10 to 15 mph.

    Low: 62 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 62. Calm wind becoming northwest around 5 mph after midnight.
Veterans Day
A slight chance of sprinkles before 9am. Partly sunny, with a high near 75. Northwest wind around 5 mph becoming south in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 63. West wind 5 to 10 mph.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 76. Northwest wind 10 to 15 mph.
Thursday Night
Partly cloudy, with a low around 59. North wind 10 to 15 mph.
Friday
Sunny, with a high near 68. North wind 10 to 15 mph.
Friday Night
Mostly clear, with a low around 59. Northeast wind 10 to 15 mph.
Saturday
Sunny, with a high near 67. Northeast wind 10 to 15 mph.
Saturday Night
Partly cloudy, with a low around 62. East wind 10 to 15 mph.
Sunday
A slight chance of showers. Partly sunny, with a high near 72. Breezy, with an east wind 15 to 20 mph.
Sunday Night
A slight chance of showers. Mostly cloudy, with a low around 66. Breezy, with an east wind around 25 mph.
Monday
A chance of showers. Mostly sunny, with a high near 72. Breezy, with a northeast wind 20 to 25 mph.
Monday Night
Partly cloudy, with a low around 63. Breezy, with a northeast wind 20 to 25 mph.
Tuesday
Mostly sunny, with a high near 70. Breezy, with a northeast wind 20 to 25 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Grand Isle LA
 29.19°N 90.07°W
Last Update:
1:27 pm CST Nov 10, 2026
Forecast Valid:
3pm CST Nov 10, 2026-6pm CST Nov 17, 2026
 
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Additional Resources

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Chance of Precipitation