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

59°F

15°C

Humidity 94%
Wind Speed N 5 mph
Barometer 30.02 in
Dewpoint 57°F (14°C)
Visibility 9.00 mi
Last update 7 Nov 1:35 am CST
Extended Forecast for

3 Miles NE Grand Isle LA

  • Overnight

    Overnight: Partly cloudy, with a low around 66. Northeast wind 10 to 15 mph.

    Low: 66 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 74. Northeast wind 10 to 15 mph.

    High: 74 °F

    Mostly Sunny

  • Saturday Night

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

    Low: 62 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 71. North wind 10 to 15 mph.

    High: 71 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65. Northeast wind 10 to 15 mph.

    Low: 65 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 72. Northeast wind 5 to 15 mph.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. Northeast wind around 5 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 74. Northeast wind 5 to 10 mph becoming light in the afternoon.

    High: 74 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers before midnight. Partly cloudy, with a low around 67. Calm wind becoming north around 5 mph after midnight.

    Low: 67 °F

    Slight Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 66. Northeast wind 10 to 15 mph.
Saturday
Mostly sunny, with a high near 74. Northeast wind 10 to 15 mph.
Saturday Night
Partly cloudy, with a low around 62. North wind 10 to 15 mph.
Sunday
Mostly sunny, with a high near 71. North wind 10 to 15 mph.
Sunday Night
Partly cloudy, with a low around 65. Northeast wind 10 to 15 mph.
Monday
Sunny, with a high near 72. Northeast wind 5 to 15 mph.
Monday Night
Partly cloudy, with a low around 66. Northeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 74. Northeast wind 5 to 10 mph becoming light in the afternoon.
Tuesday Night
A slight chance of showers before midnight. Partly cloudy, with a low around 67. Calm wind becoming north around 5 mph after midnight.
Veterans Day
A slight chance of showers before noon. Partly sunny, with a high near 74. North wind 5 to 10 mph becoming light northeast in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 66. Light northwest wind increasing to 5 to 10 mph after midnight.
Thursday
Partly sunny, with a high near 74. Northwest wind around 10 mph.
Thursday Night
Mostly cloudy, with a low around 62. Breezy, with a north wind 15 to 20 mph.
Friday
Sunny, with a high near 68. North wind around 15 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NE Grand Isle LA
 29.26°N 89.96°W
Last Update:
12:57 am CST Nov 7, 2026
Forecast Valid:
1am CST Nov 7, 2026-6pm CST Nov 13, 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