Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Fair

28°C

82°F

Humidity 78%
Wind Speed Calm
Barometer 29.96 in
Dewpoint 23°C (74°F)
Visibility 16 km
Heat Index31°C (88°F)
Last update 2 Jul 7:35 pm CDT
Extended Forecast for

13 Miles WSW Grand Isle LA

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 27. West wind 10 to 15 km/h.  New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.

    Low: 27 °C

    Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 32. Northwest wind around 10 km/h.

    High: 32 °C

    Chance
    T-storms then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 27. Calm wind.  Chance of precipitation is 40%.

    Low: 27 °C

    Slight Chance
    Showers then
    Chance
    T-storms

  • Independence Day

    Independence Day: A 40 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 32. North wind around 10 km/h.

    High: 32 °C

    Chance
    T-storms

  • Friday Night

    Friday Night: A slight chance of showers, then a chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 27. Calm wind.  Chance of precipitation is 30%.

    Low: 27 °C

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 32. North wind around 10 km/h becoming southeast in the afternoon.

    High: 32 °C

    Chance
    Showers

  • Saturday Night

    Saturday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 27. Calm wind.  Chance of precipitation is 40%.

    Low: 27 °C

    Slight Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm.  Sunny, with a high near 32. Northeast wind 5 to 10 km/h becoming southeast in the afternoon.  Chance of precipitation is 60%.

    High: 32 °C

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms.  Mostly clear, with a low around 27. Southeast wind 5 to 10 km/h.

    Low: 27 °C

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Tonight
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 27. West wind 10 to 15 km/h. New rainfall amounts between 1 and 2.5 mm, except higher amounts possible in thunderstorms.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 32. Northwest wind around 10 km/h.
Thursday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 27. Calm wind. Chance of precipitation is 40%.
Independence Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 32. North wind around 10 km/h.
Friday Night
A slight chance of showers, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 27. Calm wind. Chance of precipitation is 30%.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 32. North wind around 10 km/h becoming southeast in the afternoon.
Saturday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly clear, with a low around 27. Calm wind. Chance of precipitation is 40%.
Sunday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Sunny, with a high near 32. Northeast wind 5 to 10 km/h becoming southeast in the afternoon. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 27. Southeast wind 5 to 10 km/h.
Monday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 31. Southeast wind 5 to 15 km/h.
Monday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 27. South wind 5 to 10 km/h.
Tuesday
Showers and possibly a thunderstorm. Mostly sunny, with a high near 31. Southwest wind 5 to 15 km/h.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 27. Southwest wind 5 to 10 km/h.
Wednesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 32. Southwest wind 5 to 15 km/h.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
13 Miles WSW Grand Isle LA
 29.15°N 90.17°W
6:20 pm CDT Jul 2, 2025
7pm CDT Jul 2, 2025-6pm CDT Jul 9, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database