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Current conditions at
Galliano, South Lafourche Airport (KGAO)
Lat: 29.44°NLon: 90.26°WElev: 0ft.
Mostly Cloudy
54°F
12°C
| Humidity | 89% |
| Wind Speed | Calm |
| Barometer | 30.17 in |
| Dewpoint | 50°F (10°C) |
| Visibility | 10.00 mi |
| Last update | 3 Feb 8:35 pm CST |
Extended Forecast for
Grand Isle LA
Tonight
Low: 60 °F
Slight Chance
Showers then
Showers
LikelyWednesday
High: 58 °F
Showers then
Becoming
Sunny and
BreezyWednesday Night

Low: 41 °F
Mostly Clear
and BreezyThursday
High: 52 °F
Sunny and
Breezy then
SunnyThursday Night

Low: 46 °F
Mostly Clear
Friday
High: 62 °F
Sunny then
Sunny and
BreezyFriday Night
Low: 52 °F
Clear and
Breezy then
Mostly ClearSaturday

High: 61 °F
Sunny
Saturday Night

Low: 56 °F
Mostly Clear
Detailed Forecast
Tonight
Showers likely, mainly after 5am. Partly cloudy, with a steady temperature around 60. Southwest wind 10 to 15 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Showers, mainly before 11am. Steady temperature around 58. Breezy, with a north wind 15 to 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Mostly clear, with a low around 41. Breezy, with a north wind 20 to 25 mph.
Thursday
Sunny, with a high near 52. Breezy, with a north wind 15 to 25 mph.
Thursday Night
Mostly clear, with a low around 46. Northwest wind around 10 mph.
Friday
Sunny, with a high near 62. Breezy, with a west wind 10 to 20 mph.
Friday Night
Clear, with a low around 52. Breezy, with a west wind 10 to 20 mph.
Saturday
Sunny, with a high near 61. Northwest wind 5 to 10 mph becoming southeast in the afternoon.
Saturday Night
Mostly clear, with a low around 56. South wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 64. Calm wind becoming southwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 57. Southwest wind around 5 mph becoming northwest after midnight.
Monday
Mostly sunny, with a high near 64. North wind around 5 mph becoming southeast in the afternoon.
Monday Night
Mostly cloudy, with a low around 57. Southeast wind around 5 mph.
Tuesday
Mostly sunny, with a high near 65. Southeast wind 5 to 10 mph.
Additional Forecasts and Information
Basemap Options
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ABOUT THIS FORECAST
Point Forecast:
Grand Isle LA
29.23°N 89.99°W
29.23°N 89.99°W
5:19 pm CST Feb 3, 2026
8pm CST Feb 3, 2026-6pm CST Feb 10, 2026


