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.

Partly Cloudy

50°F

10°C

Humidity 92%
Wind Speed Calm
Barometer 30.24 in
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 13 Nov 2:15 am CST
Extended Forecast for

4 Miles WSW Grand Isle LA

  • Overnight

    Overnight: Mostly clear, with a low around 67. South wind around 5 mph becoming calm.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 72. Calm wind becoming east around 5 mph in the afternoon.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a steady temperature around 69. Southeast wind around 5 mph becoming calm in the evening.

    Low: 69 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 72. Northeast wind around 5 mph.

    High: 72 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 67. Southeast wind around 5 mph.

    Low: 67 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 73. Southeast wind around 5 mph.

    High: 73 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 69. Southwest wind 5 to 10 mph.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 74. Southwest wind around 5 mph.

    High: 74 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70. South wind around 5 mph.

    Low: 70 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 67. South wind around 5 mph becoming calm.
Thursday
Sunny, with a high near 72. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a steady temperature around 69. Southeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 72. Northeast wind around 5 mph.
Friday Night
Mostly clear, with a low around 67. Southeast wind around 5 mph.
Saturday
Sunny, with a high near 73. Southeast wind around 5 mph.
Saturday Night
Mostly clear, with a low around 69. Southwest wind 5 to 10 mph.
Sunday
Sunny, with a high near 74. Southwest wind around 5 mph.
Sunday Night
Mostly clear, with a low around 70. South wind around 5 mph.
Monday
Sunny, with a high near 75. South wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 71. South wind around 10 mph.
Tuesday
Sunny, with a high near 76. South wind around 10 mph.
Tuesday Night
Mostly clear, with a low around 69. South wind around 10 mph.
Wednesday
Mostly sunny, with a high near 74. Southeast wind around 10 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Grand Isle LA
 29.21°N 90.04°W
Last Update:
11:31 pm CST Nov 12, 2025
Forecast Valid:
2am CST Nov 13, 2025-6pm CST Nov 19, 2025
 
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Additional Resources

Radar & Satellite Image

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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