


Current conditions at
Galliano, South Lafourche Airport (KGAO)
Lat: 29.44°NLon: 90.26°WElev: 0ft.
Fair
75°F
24°C
Humidity | 91% |
Wind Speed | Calm |
Barometer | 30.02 in |
Dewpoint | 73°F (23°C) |
Visibility | 7.00 mi |
Last update | 16 Jun 9:55 pm CDT |
Extended Forecast for
Grand Isle LA
Tonight
Low: 82 °F
Chance
T-stormsTuesday
High: 87 °F
T-storms
LikelyTuesday Night
Low: 85 °F
Chance
T-stormsWednesday
High: 87 °F
T-storms
LikelyWednesday Night
Low: 83 °F
Chance
T-stormsJuneteenth
High: 87 °F
Showers
LikelyThursday Night
Low: 81 °F
Chance
T-stormsFriday
High: 87 °F
Chance
T-stormsFriday Night
Low: 83 °F
Chance
T-storms
Detailed Forecast
Tonight
A 40 percent chance of showers and thunderstorms, mainly between 4am and 5am. Mostly cloudy, with a low around 82. South wind around 10 mph.
Tuesday
Showers and thunderstorms likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 87. South wind around 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a steady temperature around 85. South wind around 10 mph.
Wednesday
Showers likely and possibly a thunderstorm before 10am, then showers and thunderstorms likely between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly sunny, with a high near 87. South wind around 10 mph. Chance of precipitation is 70%.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 83. South wind around 10 mph.
Juneteenth
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. South wind 5 to 10 mph. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 81. South wind around 5 mph.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. West wind 5 to 10 mph becoming east in the morning.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 83. South wind 5 to 10 mph.
Saturday
A chance of showers and thunderstorms. Sunny, with a high near 87. Southeast wind 5 to 10 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 82. Southeast wind around 10 mph.
Sunday
Showers likely and possibly a thunderstorm. Sunny, with a high near 87. Southeast wind around 10 mph.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 82. Southeast wind 10 to 15 mph.
Monday
Showers and thunderstorms likely. Mostly sunny, with a high near 87. East wind 10 to 15 mph.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Grand Isle LA
29.23°N 89.99°W
29.23°N 89.99°W
9:56 pm CDT Jun 16, 2025
10pm CDT Jun 16, 2025-6pm CDT Jun 23, 2025