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

23°C

73°F

Humidity 74%
Wind Speed N 30 G 41 km/h
Barometer 30.09 in
Dewpoint 18°C (64°F)
Visibility 16 km
Last update 28 May 7:55 pm CDT
Extended Forecast for

Grand Isle LA

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 26. South wind 10 to 15 km/h.

    Low: 26 °C

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 29. Southeast wind 10 to 15 km/h.

    High: 29 °C

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 26. Southeast wind around 15 km/h.

    Low: 26 °C

    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 29. Southeast wind around 15 km/h.

    High: 29 °C

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 26. Southeast wind around 15 km/h.

    Low: 26 °C

    Slight Chance
    T-storms

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 29. Southeast wind around 15 km/h. Chance of precipitation is 30%.

    High: 29 °C

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 26. Southeast wind 15 to 20 km/h.

    Low: 26 °C

    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 29. Southeast wind around 15 km/h.

    High: 29 °C

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 26. Southeast wind 15 to 20 km/h.

    Low: 26 °C

    Chance
    T-storms

Detailed Forecast

Tonight
A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 26. South wind 10 to 15 km/h.
Wednesday
Mostly sunny, with a high near 29. Southeast wind 10 to 15 km/h.
Wednesday Night
Mostly cloudy, with a low around 26. Southeast wind around 15 km/h.
Thursday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 29. Southeast wind around 15 km/h.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 26. Southeast wind around 15 km/h.
Friday
A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 29. Southeast wind around 15 km/h. Chance of precipitation is 30%.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 26. Southeast wind 15 to 20 km/h.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 29. Southeast wind around 15 km/h.
Saturday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 26. Southeast wind 15 to 20 km/h.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 29. South wind around 15 km/h.
Sunday Night
Partly cloudy, with a low around 26. South wind 15 to 20 km/h.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 29. Southeast wind around 15 km/h.
Monday Night
Partly cloudy, with a low around 26. Southeast wind around 15 km/h.
Tuesday
Mostly sunny, with a high near 29. South wind around 15 km/h.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Isle LA
 29.23°N 89.99°W
Last Update:
7:01 pm CDT May 28, 2024
Forecast Valid:
8pm CDT May 28, 2024-6pm CDT Jun 4, 2024
 
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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