Current conditions at
Galliano, South Lafourche Airport (KGAO)
Lat: 29.44°NLon: 90.26°WElev: 0ft.
Fair
49°F
9°C
| Humidity | 42% |
| Wind Speed | N 7 mph |
| Barometer | 30.36 in |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 12 Jan 5:15 pm CST |
Extended Forecast for
Grand Isle LA
Tonight

Low: 51 °F
Partly Cloudy
Tuesday

High: 59 °F
Sunny
Tuesday Night

Low: 58 °F
Chance
ShowersWednesday
High: 64 °F
Mostly Sunny
then Mostly
Sunny and
BreezyWednesday Night

Low: 45 °F
Partly Cloudy
and WindyThursday

High: 50 °F
Sunny and
WindyThursday Night

Low: 46 °F
Mostly Clear
Friday

High: 61 °F
Sunny
Friday Night

Low: 52 °F
Partly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 51. Northeast wind 5 to 10 mph.
Tuesday
Sunny, with a high near 59. Northeast wind around 5 mph becoming calm in the afternoon.
Tuesday Night
A 30 percent chance of showers, mainly after midnight. Mostly cloudy, with a steady temperature around 58. Light and variable wind becoming west 5 to 10 mph after midnight.
Wednesday
Mostly sunny, with a high near 64. Breezy, with a west wind 10 to 15 mph increasing to 15 to 20 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 45. Windy, with a north wind 20 to 30 mph.
Thursday
Sunny, with a high near 50. Windy, with a north wind 25 to 30 mph decreasing to 15 to 20 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 46. North wind 10 to 15 mph decreasing to 5 to 10 mph after midnight.
Friday
Sunny, with a high near 61. Northeast wind 5 to 10 mph becoming southwest in the afternoon.
Friday Night
Partly cloudy, with a low around 52. Southwest wind 10 to 15 mph becoming northwest after midnight.
Saturday
Sunny, with a high near 60. North wind around 15 mph.
Saturday Night
Partly cloudy, with a low around 49. Northwest wind around 15 mph.
Sunday
Sunny, with a high near 57. North wind 10 to 15 mph.
Sunday Night
Mostly clear, with a low around 44. North wind around 10 mph becoming south in the evening.
M.L.King Day
Sunny, with a high near 57. Northeast wind 5 to 10 mph becoming southeast in the afternoon.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
Grand Isle LA
29.23°N 89.99°W
29.23°N 89.99°W
3:58 pm CST Jan 12, 2026
5pm CST Jan 12, 2026-6pm CST Jan 19, 2026


