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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

79°F

26°C

Humidity	70%
Wind Speed	SE 9 mph
Barometer	30.14 in
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	1 Apr 1:35 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

This Afternoon
High: 80 °F
Chance
T-storms
Tonight
Low: 68 °F
Slight Chance
T-storms then
Partly Cloudy
Thursday
High: 80 °F
Chance
T-storms and
Patchy Fog
Thursday Night
Low: 68 °F
Slight Chance
T-storms then
Slight Chance
Showers
Friday
High: 80 °F
Chance
T-storms
Friday Night
Low: 68 °F
Slight Chance
T-storms then
Partly Cloudy
Saturday
High: 81 °F
Chance
T-storms
Saturday Night
Low: 66 °F
Chance
Showers
Sunday
High: 78 °F
Showers
Likely

Detailed Forecast

This Afternoon

A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80. Southeast wind around 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tonight

A 20 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 68. Southeast wind around 10 mph.

Thursday

A 40 percent chance of showers and thunderstorms, mainly after 1pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 80. Southeast wind 10 to 15 mph.

Thursday Night

A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly cloudy, with a low around 68. Southeast wind around 10 mph. Chance of precipitation is 20%.

Friday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 80. Southeast wind 10 to 15 mph.

Friday Night

A slight chance of thunderstorms before 7pm. Partly cloudy, with a low around 68. Southeast wind around 10 mph. Chance of precipitation is 10%.

Saturday

A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 81. Southeast wind around 10 mph. Chance of precipitation is 40%.

Saturday Night

A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66. Southeast wind around 5 mph.

Sunday

Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 78. North wind 5 to 10 mph.

Sunday Night

A chance of showers, with thunderstorms also possible after 1am. Cloudy, with a low around 57. North wind 10 to 15 mph.

Monday

A slight chance of showers. Cloudy, with a high near 71. Northeast wind around 15 mph.

Monday Night

Mostly cloudy, with a low around 58. Northeast wind around 10 mph, with gusts as high as 20 mph.

Tuesday

Mostly sunny, with a high near 74. Northeast wind 10 to 15 mph.