Severe Thunderstorms and Heavy Rain in the Central Plains and Midwest; Heat Pushes into the South and East

Scattered severe thunderstorms capable of large hail in excess of two inches, strong tornadoes, and damaging wind gusts are likely across parts of the Upper Mississippi Valley and Midwest this evening. Heavy to excessive rainfall may bring a flooding threat to portions of the Central Plains to the Midwest through Thursday. The heatwave in the Central U.S. will begin to push South and East Thursday Read More >

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Fair

73°F

23°C

Humidity 92%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 70°F (21°C)
Visibility 7.00 mi
Last update 11 Jun 4:55 am CDT
Extended Forecast for

Grand Isle LA

  • Today

    Today: Sunny, with a high near 86. Southeast wind 5 to 10 mph.

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a steady temperature around 85. Southeast wind 5 to 10 mph.

    Low: 85 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. South wind around 5 mph.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 81. South wind around 5 mph.

    Low: 81 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 86. Light southwest wind becoming south 5 to 10 mph in the afternoon.

    High: 86 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 82. South wind around 10 mph.

    Low: 82 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 87. South wind 5 to 10 mph.

    High: 87 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 82. South wind 10 to 15 mph.

    Low: 82 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A slight chance of showers and thunderstorms.  Mostly sunny, with a high near 87. South wind around 10 mph, with gusts as high as 20 mph.

    High: 87 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 86. Southeast wind 5 to 10 mph.
Tonight
Mostly clear, with a steady temperature around 85. Southeast wind 5 to 10 mph.
Friday
Sunny, with a high near 86. South wind around 5 mph.
Friday Night
Mostly clear, with a low around 81. South wind around 5 mph.
Saturday
Sunny, with a high near 86. Light southwest wind becoming south 5 to 10 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 82. South wind around 10 mph.
Sunday
Mostly sunny, with a high near 87. South wind 5 to 10 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 82. South wind 10 to 15 mph.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. South wind around 10 mph, with gusts as high as 20 mph.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 82. South wind 10 to 15 mph.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 86. Southwest wind 10 to 15 mph.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 81. South wind 10 to 15 mph.
Wednesday
Showers and thunderstorms likely. Mostly cloudy, with a high near 87. Southwest wind around 15 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
Grand Isle LA
 29.23°N 89.99°W
2:02 am CDT Jun 11, 2026
5am CDT Jun 11, 2026-6pm CDT Jun 17, 2026
 
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Additional Resources

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