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

62°F

17°C

Humidity 52%
Wind Speed N 15 G 25 mph
Barometer 30.19 in
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 12 Mar 2:15 pm CDT
Extended Forecast for

2 Miles NE Grand Isle LA

  • This Afternoon

    This Afternoon: Sunny, with a high near 66. Breezy, with a north wind around 20 mph.

    High: 66 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 59. Breezy, with a northeast wind 10 to 20 mph.

    Low: 59 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 67. East wind around 5 mph becoming southeast in the afternoon.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 63. Calm wind becoming southeast around 5 mph after midnight.

    Low: 63 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 71. Southeast wind 5 to 10 mph.

    High: 71 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 67. Southeast wind around 10 mph.

    Low: 67 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 74. South wind 10 to 15 mph.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 52. Breezy, with a south wind 15 to 20 mph becoming northwest after midnight. Chance of precipitation is 70%.

    Low: 52 °F

    Chance
    Showers then
    Showers
    Likely and
    Breezy

  • Monday

    Monday: A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 59. Breezy, with a north wind 20 to 25 mph.

    High: 59 °F

    Slight Chance
    T-storms and
    Breezy

Detailed Forecast

This Afternoon
Sunny, with a high near 66. Breezy, with a north wind around 20 mph.
Tonight
Mostly clear, with a low around 59. Breezy, with a northeast wind 10 to 20 mph.
Friday
Sunny, with a high near 67. East wind around 5 mph becoming southeast in the afternoon.
Friday Night
Mostly clear, with a low around 63. Calm wind becoming southeast around 5 mph after midnight.
Saturday
Mostly sunny, with a high near 71. Southeast wind 5 to 10 mph.
Saturday Night
Partly cloudy, with a low around 67. Southeast wind around 10 mph.
Sunday
Sunny, with a high near 74. South wind 10 to 15 mph.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 52. Breezy, with a south wind 15 to 20 mph becoming northwest after midnight. Chance of precipitation is 70%.
Monday
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 59. Breezy, with a north wind 20 to 25 mph.
Monday Night
Partly cloudy, with a low around 47. Breezy, with a north wind 20 to 25 mph.
Tuesday
Partly sunny, with a high near 58. Breezy, with a north wind 15 to 20 mph.
Tuesday Night
Mostly clear, with a low around 53. Northeast wind around 10 mph.
Wednesday
Sunny, with a high near 64. East wind around 10 mph.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Grand Isle LA
 29.26°N 89.96°W
Last Update:
12:31 pm CDT Mar 12, 2026
Forecast Valid:
2pm CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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