Hazardous Weather Conditions
Current conditions at
Galliano, South Lafourche Airport (KGAO)
Lat: 29.44°NLon: 90.26°WElev: 0ft.
Fair
67°F
19°C
| Humidity | 91% |
| Wind Speed | SW 5 mph |
| Barometer | 30.00 in |
| Dewpoint | 64°F (18°C) |
| Visibility | 7.00 mi |
| Last update | 7 Jan 12:55 am CST |
Extended Forecast for
Grand Isle LA
Dense Fog Advisory January 7, 01:21am until January 7, 10:00am
NOW until 10:00am Wed

Dense Fog Advisory
Overnight

Low: 64 °F
Patchy Fog
Wednesday

High: 72 °F
Mostly Sunny
Wednesday Night
Low: 65 °F
Partly Cloudy
then Patchy
FogThursday
High: 73 °F
Patchy Fog
then Mostly
SunnyThursday Night

Low: 66 °F
Slight Chance
ShowersFriday

High: 75 °F
Chance
ShowersFriday Night

Low: 64 °F
Showers
LikelySaturday

High: 70 °F
Showers
Likely
Detailed Forecast
Overnight
Patchy fog before 3am. Otherwise, mostly cloudy, with a low around 64. West wind around 5 mph.
Wednesday
Mostly sunny, with a high near 72. Southwest wind around 5 mph.
Wednesday Night
Patchy fog after 2am. Otherwise, partly cloudy, with a low around 65. South wind 5 to 10 mph.
Thursday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 73. South wind 10 to 15 mph.
Thursday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 66. Southeast wind 10 to 15 mph.
Friday
A 50 percent chance of showers. Partly sunny, with a high near 75. South wind around 15 mph.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. South wind around 15 mph. Chance of precipitation is 60%.
Saturday
Showers likely, mainly before noon. Mostly cloudy, with a high near 70. Southwest wind around 15 mph becoming north in the afternoon. Chance of precipitation is 70%.
Saturday Night
A chance of showers. Cloudy, with a low around 52. Windy, with a north wind 15 to 20 mph increasing to 25 to 30 mph after midnight.
Sunday
Mostly cloudy, with a high near 58. Windy, with a north wind 20 to 30 mph.
Sunday Night
Mostly cloudy, with a low around 47. Breezy, with a north wind around 25 mph.
Monday
Partly sunny, with a high near 54. Breezy, with a northeast wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon.
Monday Night
Mostly cloudy, with a low around 49. Northeast wind around 10 mph.
Tuesday
Partly sunny, with a high near 58. North wind 5 to 10 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
12:26 am CST Jan 7, 2026
1am CST Jan 7, 2026-6pm CST Jan 13, 2026



