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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.

Overcast

65°F

18°C

Humidity	81%
Wind Speed	N 18 G 24 mph
Barometer	30.10 in
Dewpoint	59°F (15°C)
Visibility	10.00 mi
Last update	19 Apr 5:35 am CDT

More Information:

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

Extended Forecast for

2 Miles NE Grand Isle LA

Overnight
Low: 68 °F
Chance
T-storms and
Breezy
Sunday
High: 71 °F
Breezy.
Chance
T-storms then
Partly Sunny
Sunday Night
Low: 65 °F
Partly Cloudy
and Breezy
Monday
High: 73 °F
Partly Sunny
and Breezy
Monday Night
Low: 68 °F
Partly Cloudy
Tuesday
High: 76 °F
Partly Sunny
Tuesday Night
Low: 69 °F
Mostly Cloudy
Wednesday
High: 74 °F
Slight Chance
Showers then
Slight Chance
T-storms
Wednesday Night
Low: 69 °F
Partly Cloudy

Detailed Forecast

Overnight

A 50 percent chance of showers and thunderstorms. Cloudy, with a steady temperature around 68. Breezy, with a north wind around 20 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday

A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and noon. Mostly cloudy, with a high near 71. Breezy, with a northeast wind 20 to 25 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Sunday Night

Partly cloudy, with a low around 65. Breezy, with a northeast wind around 20 mph.

Monday

Partly sunny, with a high near 73. Breezy, with an east wind 15 to 20 mph.

Monday Night

Partly cloudy, with a low around 68. East wind 10 to 15 mph.

Tuesday

Partly sunny, with a high near 76. Southeast wind around 15 mph.

Tuesday Night

Mostly cloudy, with a low around 69. Southeast wind 10 to 15 mph.

Wednesday

A slight chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 74. Southeast wind 10 to 15 mph. Chance of precipitation is 20%.

Wednesday Night

Partly cloudy, with a low around 69. Southeast wind around 15 mph.

Thursday

A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 75. Southeast wind around 15 mph.

Thursday Night

Partly cloudy, with a low around 71. Southeast wind around 15 mph.

Friday

A slight chance of showers and thunderstorms. Partly sunny, with a high near 77. South wind around 15 mph.

Friday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 71. South wind 10 to 15 mph.

Saturday

A chance of showers and thunderstorms. Partly sunny, with a high near 77. South wind around 10 mph.