Coastal Threats for the East and Gulf; Record Warmth for the Central U.S.

Persistent onshore flow across the Southeast and portions of the mid-Atlantic will keep the risk of rip currents through the weekend. Rainfall could be locally heavy across Florida, especially along the eastern shoreline. Meanwhile, record warmth for portions of the Plains and Midwest with elevated fire concerns. For the west, a trough will keep the pattern unsettled with wet conditions. Read More >

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Overcast

71°F

22°C

Humidity 89%
Wind Speed Calm
Barometer 29.97 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 4 Oct 3:35 am CDT
Extended Forecast for

Grand Isle LA

  • Overnight

    Overnight: Showers and possibly a thunderstorm.  Steady temperature around 78. Breezy, with an east wind around 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 78 °F

    Showers and
    Breezy

  • Saturday

    Saturday: Showers and possibly a thunderstorm.  High near 81. Breezy, with an east wind 20 to 25 mph.  Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.

    High: 81 °F

    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 76. Breezy, with an east wind 20 to 25 mph.  Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 76 °F

    Showers and
    Breezy

  • Sunday

    Sunday: Showers and possibly a thunderstorm.  High near 83. East wind around 15 mph.  Chance of precipitation is 80%.

    High: 83 °F

    T-storms then
    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 79. Southeast wind 10 to 15 mph.  Chance of precipitation is 60%.

    Low: 79 °F

    Showers
    Likely

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 84. East wind around 10 mph.

    High: 84 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers before 1am.  Partly cloudy, with a low around 79. East wind around 10 mph.

    Low: 79 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 1pm.  Sunny, with a high near 84. Northeast wind around 10 mph.

    High: 84 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 79. Northeast wind around 10 mph.

    Low: 79 °F

    Slight Chance
    T-storms

Detailed Forecast

Overnight
Showers and possibly a thunderstorm. Steady temperature around 78. Breezy, with an east wind around 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and possibly a thunderstorm. High near 81. Breezy, with an east wind 20 to 25 mph. Chance of precipitation is 80%. New rainfall amounts between three quarters and one inch possible.
Saturday Night
Showers and possibly a thunderstorm. Low around 76. Breezy, with an east wind 20 to 25 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Sunday
Showers and possibly a thunderstorm. High near 83. East wind around 15 mph. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 79. Southeast wind 10 to 15 mph. Chance of precipitation is 60%.
Monday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 84. East wind around 10 mph.
Monday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 79. East wind around 10 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Sunny, with a high near 84. Northeast wind around 10 mph.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 79. Northeast wind around 10 mph.
Wednesday
A chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 84. Northeast wind around 15 mph.
Wednesday Night
A slight chance of showers. Partly cloudy, with a low around 78. East wind around 15 mph.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Northeast wind around 15 mph.
Thursday Night
Mostly clear, with a low around 77. East wind around 15 mph.
Friday
A slight chance of showers and thunderstorms. Sunny, with a high near 82. East wind around 15 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Isle LA
 29.23°N 89.99°W
12:26 am CDT Oct 4, 2025
3am CDT Oct 4, 2025-6pm CDT Oct 10, 2025
 
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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