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

70°F

21°C

Humidity 82%
Wind Speed SE 3 mph
Barometer 30.12 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 25 Mar 8:35 pm CDT
Extended Forecast for

2 Miles NE Grand Isle LA

  • Tonight

    Tonight: Mostly clear, with a low around 67. East wind around 5 mph.

    Low: 67 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 73. East wind around 5 mph.

    High: 73 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 67. Southeast wind around 5 mph.

    Low: 67 °F

    Partly Cloudy

  • Friday

    Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.

    High: 74 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. Southwest wind 5 to 15 mph becoming north after midnight.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71. Breezy, with a north wind 15 to 20 mph.

    High: 71 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 66. Northeast wind around 15 mph.

    Low: 66 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 71. Breezy, with an east wind around 20 mph.

    High: 71 °F

    Breezy.
    Mostly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67. Breezy, with an east wind 15 to 20 mph.

    Low: 67 °F

    Mostly Cloudy
    and Breezy
    then Partly
    Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 67. East wind around 5 mph.
Thursday
Mostly sunny, with a high near 73. East wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 67. Southeast wind around 5 mph.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 74. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 64. Southwest wind 5 to 15 mph becoming north after midnight.
Saturday
Sunny, with a high near 71. Breezy, with a north wind 15 to 20 mph.
Saturday Night
Mostly clear, with a low around 66. Northeast wind around 15 mph.
Sunday
A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 71. Breezy, with an east wind around 20 mph.
Sunday Night
Partly cloudy, with a low around 67. Breezy, with an east wind 15 to 20 mph.
Monday
A slight chance of showers and thunderstorms, then a chance of showers after 1pm. Mostly sunny, with a high near 73. East wind around 15 mph.
Monday Night
Partly cloudy, with a low around 68. Southeast wind 10 to 15 mph.
Tuesday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 74. Southeast wind around 10 mph.
Tuesday Night
Mostly cloudy, with a low around 69. Southeast wind around 10 mph.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 74. Southeast wind around 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Grand Isle LA
 29.26°N 89.96°W
Last Update:
5:02 pm CDT Mar 25, 2026
Forecast Valid:
8pm CDT Mar 25, 2026-6pm CDT Apr 1, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation