Current conditions at
Galliano, South Lafourche Airport (KGAO)
Lat: 29.44°NLon: 90.26°WElev: 0ft.
Fair
49°F
9°C
| Humidity | 64% |
| Wind Speed | NW 3 mph |
| Barometer | 30.42 in |
| Dewpoint | 38°F (3°C) |
| Visibility | 10.00 mi |
| Last update | 11 Jan 7:15 pm CST |
Extended Forecast for
Grand Isle LA
Tonight

Low: 48 °F
Partly Cloudy
and BreezyMonday

High: 55 °F
Mostly Sunny
Monday Night

Low: 51 °F
Partly Cloudy
Tuesday

High: 59 °F
Partly Sunny
Tuesday Night
Low: 54 °F
Mostly Cloudy
then Chance
ShowersWednesday
High: 63 °F
Partly Sunny
then Mostly
Sunny and
BreezyWednesday Night

Low: 45 °F
Mostly Clear
and WindyThursday
High: 52 °F
Sunny and
Breezy then
SunnyThursday Night

Low: 46 °F
Mostly Clear
Detailed Forecast
Tonight
Partly cloudy, with a low around 48. Breezy, with a northeast wind 20 to 25 mph.
Monday
Mostly sunny, with a high near 55. Northeast wind 10 to 15 mph.
Monday Night
Partly cloudy, with a low around 51. Northeast wind around 10 mph.
Tuesday
Partly sunny, with a high near 59. Northeast wind 5 to 10 mph becoming light north in the afternoon.
Tuesday Night
A 30 percent chance of showers after midnight. Mostly cloudy, with a low around 54. Light and variable wind becoming west 5 to 10 mph after midnight.
Wednesday
Mostly sunny, with a high near 63. Breezy, with a west wind 10 to 20 mph.
Wednesday Night
Mostly clear, with a low around 45. Windy, with a northwest wind 20 to 30 mph.
Thursday
Sunny, with a high near 52. Breezy, with a north wind 20 to 25 mph decreasing to 10 to 15 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 46. Northwest wind 5 to 10 mph.
Friday
Sunny, with a high near 61. North wind around 5 mph becoming south in the morning.
Friday Night
Partly cloudy, with a low around 52. South wind 5 to 15 mph becoming northeast after midnight.
Saturday
A slight chance of showers. Mostly sunny, with a high near 61. Northeast wind around 15 mph.
Saturday Night
A slight chance of showers. Mostly cloudy, with a low around 45. Breezy, with a north wind 15 to 20 mph.
Sunday
Sunny, with a high near 55. Breezy, with a north wind 15 to 20 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
11:33 am CST Jan 11, 2026
7pm CST Jan 11, 2026-6pm CST Jan 18, 2026


