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👉 NWS New Orleans Will Update Public, Marine and Fire Weather Forecast Zones in April 2026

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Partly Cloudy

81°F

27°C

Humidity	63%
Wind Speed	SW 13 mph
Barometer	29.99 in
Dewpoint	67°F (19°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	18 Apr 4:15 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

15 Miles WSW Grand Isle LA

Tonight
Low: 59 °F
Mostly Cloudy
then Chance
T-storms
Sunday
High: 73 °F
Breezy.
Chance
Showers then
Mostly Sunny
Sunday Night
Low: 61 °F
Partly Cloudy
Monday
High: 75 °F
Partly Sunny
Monday Night
Low: 65 °F
Mostly Cloudy
Tuesday
High: 78 °F
Partly Sunny
Tuesday Night
Low: 66 °F
Mostly Cloudy
Wednesday
High: 77 °F
Slight Chance
Showers
Wednesday Night
Low: 67 °F
Partly Cloudy

Detailed Forecast

Tonight

A 40 percent chance of showers and thunderstorms, mainly between 2am and 5am. Mostly cloudy, with a low around 59. South wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 20 mph.

Sunday

A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 73. Breezy, with a northeast wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 40%.

Sunday Night

Partly cloudy, with a low around 61. Northeast wind 10 to 15 mph.

Monday

Partly sunny, with a high near 75. East wind around 15 mph, with gusts as high as 25 mph.

Monday Night

Mostly cloudy, with a low around 65. East wind 5 to 10 mph, with gusts as high as 20 mph.

Tuesday

Partly sunny, with a high near 78. East wind 10 to 15 mph.

Tuesday Night

Mostly cloudy, with a low around 66. East wind around 10 mph.

Wednesday

A 20 percent chance of showers. Mostly cloudy, with a high near 77. Southeast wind 10 to 15 mph.