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

Hazardous Weather Conditions

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Fair

76°F

24°C

Humidity 90%
Wind Speed Calm
Barometer 30.08 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index76°F (24°C)
Last update 17 Aug 5:15 am CDT
Extended Forecast for

Larose LA

Extreme Heat Warning August 17, 11:00am until August 17, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Today

    Today: A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Sunny and hot, with a high near 95. Heat index values as high as 109. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 78. West wind around 5 mph.

    Low: 78 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 94. Heat index values as high as 109. West wind 5 to 10 mph.

    High: 94 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 79. West wind around 5 mph.

    Low: 79 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. West wind 5 to 10 mph.

    High: 94 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 77. Southwest wind around 5 mph.

    Low: 77 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95. West wind around 5 mph.

    High: 95 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 77. West wind around 5 mph.

    Low: 77 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 94 °F

    Sunny then
    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 5pm. Sunny and hot, with a high near 95. Heat index values as high as 109. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 78. West wind around 5 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 94. Heat index values as high as 109. West wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 79. West wind around 5 mph.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. West wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 77. Southwest wind around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95. West wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 77. West wind around 5 mph.
Friday
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 76. West wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm in the evening.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming southwest around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Larose LA
 29.57°N 90.39°W
Last Update:
2:02 am CDT Aug 17, 2026
Forecast Valid:
5am CDT Aug 17, 2026-6pm CDT Aug 23, 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