Severe Thunderstorm and Flash Flooding Threat Shifts to the Southeast U.S. Tuesday

Strong to severe thunderstorms will shift east on Tuesday, with damaging winds the most likely hazard, over parts of northern Florida and southern Georgia. Heavy to excessive rainfall will also be possible Tuesday over northern Florida. Read More >

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Overcast

82°F

28°C

Humidity	64%
Wind Speed	SW 13 G 18 mph
Barometer	29.76 in
Dewpoint	69°F (21°C)
Visibility	10.00 mi
Heat Index	85°F (29°C)
Last update	14 May 2:15 pm CDT

More Information:

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

Extended Forecast for

Grand Isle LA

This Afternoon
High: 81 °F
Mostly Sunny
Tonight
Low: 74 °F
Mostly Clear
Wednesday
High: 82 °F
Sunny
Wednesday Night
Low: 76 °F
Mostly Clear
Thursday
High: 81 °F
Chance
Showers
Thursday Night
Low: 77 °F
Chance
T-storms
Friday
High: 82 °F
Chance
T-storms and
Breezy
Friday Night
Low: 76 °F
Chance
T-storms and
Breezy
Saturday
High: 83 °F
Chance
T-storms

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 81. Southwest wind around 10 mph.

Tonight

Mostly clear, with a low around 74. Southwest wind 5 to 10 mph becoming northwest after midnight.

Wednesday

Sunny, with a high near 82. Northwest wind around 5 mph becoming southwest in the afternoon.

Wednesday Night

Mostly clear, with a low around 76. Southwest wind around 5 mph.

Thursday

A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 81. Southeast wind 5 to 10 mph. Chance of precipitation is 30%.

Thursday Night

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Southeast wind 10 to 15 mph.

Friday

A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Breezy, with a south wind 15 to 20 mph.

Friday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. Breezy, with a south wind 15 to 20 mph.

Saturday

A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Southwest wind around 15 mph, with gusts as high as 25 mph.

Saturday Night

A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 77. Southwest wind around 10 mph becoming northwest after midnight.

Sunday

Sunny, with a high near 84. North wind around 10 mph becoming south in the afternoon.

Sunday Night

Mostly clear, with a low around 77. Southwest wind around 10 mph becoming northwest after midnight.

Monday

Sunny, with a high near 83. Northeast wind 5 to 10 mph becoming south in the afternoon.