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.

Overcast

61°F

16°C

Humidity 71%
Wind Speed NE 5 mph
Barometer 30.10 in
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 16 Feb 2:35 pm CST
Extended Forecast for

2 Miles NE Grand Isle LA

  • Washington's Birthday

    Washington's Birthday: Mostly sunny, with a high near 59. Northeast wind around 5 mph.

    High: 59 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. East wind around 5 mph.

    Low: 58 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 67. Southeast wind around 5 mph.

    High: 67 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 63 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers after noon. Mostly sunny, with a high near 69. South wind around 10 mph.

    High: 69 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 64. South wind 10 to 15 mph.

    Low: 64 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers after noon. Partly sunny, with a high near 71. South wind around 15 mph.

    High: 71 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers. Mostly cloudy, with a low around 65. South wind 10 to 15 mph.

    Low: 65 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers. Partly sunny, with a high near 71. South wind around 10 mph.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

Washington's Birthday
Mostly sunny, with a high near 59. Northeast wind around 5 mph.
Tonight
Mostly cloudy, with a low around 58. East wind around 5 mph.
Tuesday
Partly sunny, with a high near 67. Southeast wind around 5 mph.
Tuesday Night
Mostly cloudy, with a low around 63. South wind 5 to 10 mph.
Wednesday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 69. South wind around 10 mph.
Wednesday Night
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 64. South wind 10 to 15 mph.
Thursday
A 20 percent chance of showers after noon. Partly sunny, with a high near 71. South wind around 15 mph.
Thursday Night
A 40 percent chance of showers. Mostly cloudy, with a low around 65. South wind 10 to 15 mph.
Friday
A chance of showers. Partly sunny, with a high near 71. South wind around 10 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 64. South wind around 10 mph.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 70. South wind 10 to 15 mph becoming northwest in the afternoon.
Saturday Night
A chance of showers. Partly cloudy, with a low around 57. North wind 10 to 15 mph.
Sunday
A chance of showers. Mostly sunny, with a high near 64. North wind around 15 mph.
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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 CST Feb 16, 2026
Forecast Valid:
2pm CST Feb 16, 2026-6pm CST Feb 22, 2026
 
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