Heavy Rainfall and Flooding in the Mid-Atlantic; Heat and Wildfire Concerns in the West

Slow moving showers and thunderstorms may result in flash flooding for portions of the mid-Atlantic region through tonight. Meanwhile, excessive heat will continue to build across the West through Tuesday. Heat Advisories and Extreme Heat Warnings are in effect. Fire Weather concerns continue for the West with dry and breezy conditions. Watching the tropics across the Southeast. Read More >

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Partly Cloudy

83°F

28°C

Humidity	73%
Wind Speed	NW 5 mph
Barometer	30.06 in
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	14 Jul 7:55 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: 78 °F
Mostly Clear
Tuesday
High: 92 °F
Chance
T-storms
Tuesday Night
Low: 78 °F
Mostly Clear
then Chance
T-storms
Wednesday
High: 91 °F
T-storms
Likely
Wednesday Night
Low: 75 °F
Chance
T-storms then
T-storms
Thursday
High: 89 °F
T-storms
Thursday Night
Low: 77 °F
Showers
Friday
High: 89 °F
T-storms
Friday Night
Low: 79 °F
Chance
T-storms

Detailed Forecast

Tonight

Mostly clear, with a low around 78. Calm wind becoming northwest around 5 mph.

Tuesday

A 40 percent chance of showers and thunderstorms, mainly after 3pm. Sunny, with a high near 92. Northwest wind around 5 mph becoming southwest in the afternoon.

Tuesday Night

A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 78. West wind around 5 mph.

Wednesday

Showers likely and possibly a thunderstorm before 10am, then showers and thunderstorms likely after 10am. Partly sunny, with a high near 91. Northwest wind around 5 mph becoming south in the afternoon. Chance of precipitation is 70%.

Wednesday Night

A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 75. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

Thursday

Showers and possibly a thunderstorm. High near 89. North wind around 5 mph becoming south in the afternoon. Chance of precipitation is 90%.

Thursday Night

Showers and possibly a thunderstorm. Low around 77. South wind around 5 mph. Chance of precipitation is 80%.

Friday

Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 89. Southwest wind 5 to 10 mph. Chance of precipitation is 90%.

Friday Night

A chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 79. Southwest wind around 5 mph.

Saturday

Showers and thunderstorms likely. Partly sunny, with a high near 91. Southwest wind 5 to 10 mph.

Saturday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 79. South wind around 5 mph becoming calm in the evening.

Sunday

Showers and thunderstorms likely. Mostly sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.

Sunday Night

A chance of showers and thunderstorms. Partly cloudy, with a low around 79. Southwest wind around 5 mph.

Monday

Showers and thunderstorms likely. Mostly sunny, with a high near 91. South wind around 5 mph.