Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Mostly Cloudy

80°F

27°C

Humidity 60%
Wind Speed S 8 mph
Barometer 30.04 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 18 Apr 12:15 pm CDT
Extended Forecast for

2 Miles NE Grand Isle LA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 76. South wind 5 to 10 mph.

    High: 76 °F

    Mostly Sunny

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 1am.  Mostly cloudy, with a low around 63. Southwest wind 5 to 15 mph becoming north after midnight.

    Low: 63 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms before 1pm.  Mostly cloudy, with a high near 72. Breezy, with a north wind 20 to 25 mph.

    High: 72 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 65. Breezy, with a northeast wind around 20 mph.

    Low: 65 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Partly sunny, with a high near 73. Breezy, with an east wind 15 to 20 mph.

    High: 73 °F

    Partly Sunny
    and Breezy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 68. East wind 10 to 15 mph.

    Low: 68 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 75. East wind around 15 mph.

    High: 75 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before 1am.  Mostly cloudy, with a low around 68. East wind 10 to 15 mph.

    Low: 68 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A slight chance of showers.  Mostly cloudy, with a high near 74. Southeast wind 10 to 15 mph.

    High: 74 °F

    Slight Chance
    Showers

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 76. South wind 5 to 10 mph.
Tonight
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Southwest wind 5 to 15 mph becoming north after midnight.
Sunday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 72. Breezy, with a north wind 20 to 25 mph.
Sunday Night
Partly cloudy, with a low around 65. Breezy, with a northeast wind around 20 mph.
Monday
Partly sunny, with a high near 73. Breezy, with an east wind 15 to 20 mph.
Monday Night
Partly cloudy, with a low around 68. East wind 10 to 15 mph.
Tuesday
Mostly cloudy, with a high near 75. East wind around 15 mph.
Tuesday Night
A 20 percent chance of showers before 1am. Mostly cloudy, with a low around 68. East wind 10 to 15 mph.
Wednesday
A slight chance of showers. Mostly cloudy, with a high near 74. Southeast wind 10 to 15 mph.
Wednesday Night
Partly cloudy, with a low around 69. Southeast wind 10 to 15 mph.
Thursday
Sunny, with a high near 75. Southeast wind 10 to 15 mph.
Thursday Night
Partly cloudy, with a low around 71. Southeast wind around 15 mph.
Friday
Mostly sunny, with a high near 76. South wind 10 to 15 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NE Grand Isle LA
 29.26°N 89.96°W
2:06 am CDT Apr 18, 2026
12pm CDT Apr 18, 2026-6pm CDT Apr 24, 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