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

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Overcast

74°F

23°C

Humidity 91%
Wind Speed S 14 mph
Barometer 30.00 in
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 10 Jan 4:35 am CST
Extended Forecast for

9 Miles SSW Port Sulphur LA

  • Overnight

    Overnight: A 30 percent chance of showers and thunderstorms, mainly after 5am. Cloudy, with a low around 65. South wind around 10 mph.

    Low: 65 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before noon. Mostly cloudy, with a high near 73. South wind around 10 mph becoming north in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 73 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 50. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 50 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Breezy

  • Sunday

    Sunday: Mostly sunny, with a high near 59. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 59 °F

    Partly Sunny
    and Breezy
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 44. Northeast wind around 15 mph, with gusts as high as 25 mph.

    Low: 44 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 55. Northeast wind 10 to 15 mph.

    High: 55 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 45. North wind around 5 mph.

    Low: 45 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59. Northeast wind around 5 mph becoming calm in the afternoon.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of showers after midnight. Mostly cloudy, with a low around 49. Calm wind becoming west around 5 mph after midnight.

    Low: 49 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers and thunderstorms, mainly after 5am. Cloudy, with a low around 65. South wind around 10 mph.
Saturday
Showers and thunderstorms likely, mainly before noon. Mostly cloudy, with a high near 73. South wind around 10 mph becoming north in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Mostly cloudy, with a low around 50. Breezy, with a north wind 10 to 20 mph, with gusts as high as 30 mph.
Sunday
Mostly sunny, with a high near 59. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 44. Northeast wind around 15 mph, with gusts as high as 25 mph.
Monday
Partly sunny, with a high near 55. Northeast wind 10 to 15 mph.
Monday Night
Mostly cloudy, with a low around 45. North wind around 5 mph.
Tuesday
Mostly sunny, with a high near 59. Northeast wind around 5 mph becoming calm in the afternoon.
Tuesday Night
A slight chance of showers after midnight. Mostly cloudy, with a low around 49. Calm wind becoming west around 5 mph after midnight.
Wednesday
A chance of showers, mainly before noon. Partly sunny, with a high near 63. Northwest wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 44. West wind 10 to 15 mph becoming north after midnight.
Thursday
Sunny, with a high near 53. North wind 10 to 15 mph.
Thursday Night
Mostly clear, with a low around 43. North wind 5 to 10 mph.
Friday
Sunny, with a high near 59. North wind around 5 mph becoming southwest in the afternoon.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles SSW Port Sulphur LA
 29.39°N 89.77°W
Last Update:
3:58 am CST Jan 10, 2026
Forecast Valid:
4am CST Jan 10, 2026-6pm CST Jan 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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