Current conditions at
Galliano, South Lafourche Airport (KGAO)
Lat: 29.44°NLon: 90.26°WElev: 0ft.
Thunderstorm in Vicinity
84°F
29°C
| Humidity | 78% |
| Wind Speed | SW 9 mph |
| Barometer | 29.83 in |
| Dewpoint | 77°F (25°C) |
| Visibility | 10.00 mi |
| Heat Index | 93°F (34°C) |
| Last update | 2 Aug 5:15 am CDT |
Extended Forecast for
5 Miles WSW Grand Isle LA
Overnight

Low: 80 °F
Heavy Rain
and BreezySunday
High: 88 °F
Heavy Rain
then Chance
T-stormsSunday Night

Low: 81 °F
Partly Cloudy
Monday

High: 89 °F
Sunny
Monday Night

Low: 82 °F
Mostly Clear
Tuesday

High: 89 °F
Sunny
Tuesday Night

Low: 82 °F
Mostly Clear
Wednesday

High: 88 °F
Sunny
Wednesday Night
Low: 82 °F
Mostly Clear
then Slight
Chance
T-storms
Detailed Forecast
Overnight
Showers and thunderstorms likely. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 80. Breezy, with a west wind around 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers and thunderstorms, mainly before 1pm. Some of the storms could produce heavy rainfall. High near 88. West wind around 15 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Partly cloudy, with a low around 81. West wind 5 to 15 mph.
Monday
Sunny, with a high near 89. Northwest wind around 5 mph becoming southwest in the afternoon.
Monday Night
Mostly clear, with a low around 82. Southwest wind 5 to 10 mph.
Tuesday
Sunny, with a high near 89. West wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 82. Southwest wind around 5 mph.
Wednesday
Sunny, with a high near 88. South wind around 5 mph.
Wednesday Night
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 82. South wind around 5 mph.
Thursday
A slight chance of showers and thunderstorms before 1pm. Sunny, with a high near 88. Calm wind becoming southeast around 5 mph in the morning.
Thursday Night
Mostly clear, with a low around 81. Southeast wind around 5 mph.
Friday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind 5 to 10 mph.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 81. Southeast wind around 5 mph.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88. East wind 5 to 10 mph.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
5 Miles WSW Grand Isle LA
29.21°N 90.07°W
29.21°N 90.07°W
2:01 am CDT Aug 2, 2026
5am CDT Aug 2, 2026-6pm CDT Aug 8, 2026


