National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Remnants of Arthur and Heavy Rainfall Across the South; Fire Weather Threat in the West

Life-threatening, potentially catastrophic flash flooding expected along the central Gulf Coast as the remnants of Arthur track across the area. Isolated brief tornadoes and damaging gusts remain possible overnight in the Southeast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts of the West Friday. Read More >

Hazardous Weather Conditions

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Overcast

82°F

28°C

Humidity 85%
Wind Speed S 8 mph
Barometer 29.93 in
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 19 Jun 1:55 am CDT
Extended Forecast for

Cut Off LA

Heat Advisory June 19, 10:00am until June 19, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Partly cloudy, with a low around 81. South wind around 10 mph.

    Low: 81 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 91. Heat index values as high as 109. Southwest wind 5 to 10 mph.

    High: 91 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 80. South wind 5 to 10 mph.

    Low: 80 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 90. South wind 5 to 10 mph.

    High: 90 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 80. South wind 5 to 10 mph.

    Low: 80 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny, with a high near 90. South wind 10 to 15 mph.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 81. South wind 10 to 15 mph.

    Low: 81 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 91. Southwest wind around 10 mph.

    High: 91 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 80. South wind 5 to 10 mph.

    Low: 80 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 81. South wind around 10 mph.
Juneteenth
Mostly sunny, with a high near 91. Heat index values as high as 109. Southwest wind 5 to 10 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 80. South wind 5 to 10 mph.
Saturday
A 30 percent chance of showers and thunderstorms, mainly after 3pm. Partly sunny, with a high near 90. South wind 5 to 10 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 80. South wind 5 to 10 mph.
Sunday
Mostly sunny, with a high near 90. South wind 10 to 15 mph.
Sunday Night
Partly cloudy, with a low around 81. South wind 10 to 15 mph.
Monday
Mostly sunny, with a high near 91. Southwest wind around 10 mph.
Monday Night
Mostly clear, with a low around 80. South wind 5 to 10 mph.
Tuesday
Mostly sunny, with a high near 92. Light southwest wind increasing to 5 to 10 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 78. Southwest wind 5 to 10 mph becoming light in the evening.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming southwest around 5 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming southwest around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cut Off LA
 29.52°N 90.34°W
Last Update:
2:02 am CDT Jun 19, 2026
Forecast Valid:
2am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation