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

77°F

25°C

Humidity 88%
Wind Speed Calm
Barometer 30.13 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Aug 1:15 am CDT
Extended Forecast for

Larose LA

Extreme Heat Watch August 17, 11:00am until August 17, 08:00pm
Extreme Heat Warning August 16, 11:00am until August 16, 08:00pm
Click here for hazard details and duration
Extreme Heat Watch
Extreme Heat Warning

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 80. Calm wind.

    Low: 80 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 95. Heat index values as high as 109. Calm wind becoming south around 5 mph in the afternoon.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 109. Light and variable wind becoming south 5 to 10 mph in the afternoon.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 78. Southwest wind around 5 mph.

    Low: 78 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 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 Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 78. West wind around 5 mph.

    Low: 78 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 95. West wind 5 to 10 mph.

    High: 95 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 77. West wind 5 to 10 mph.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 80. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 95. Heat index values as high as 109. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm in the evening.
Monday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 109. Light and variable wind becoming south 5 to 10 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 78. Southwest wind around 5 mph.
Tuesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95. West wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 78. West wind around 5 mph.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 95. West wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 77. West wind 5 to 10 mph.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95. West wind around 5 mph.
Thursday Night
Partly cloudy, with a low around 77. Southwest wind around 5 mph.
Friday
A chance of showers and thunderstorms. Sunny and hot, with a high near 95. West wind around 5 mph becoming southwest in the afternoon.
Friday Night
Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm after midnight.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 94. 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 90.37°W
Last Update:
12:21 am CDT Aug 16, 2026
Forecast Valid:
1am CDT Aug 16, 2026-6pm CDT Aug 22, 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