Risks of Severe Thunderstorms and Excessive Rainfall in the Central U.S.; Fire Weather Concerns in Alaska and Southwest

An expansive storm system will bring widespread storms with a threat for flash flooding and severe weather to much of the central to eastern U.S. into early this week. Critical fire weather conditions are expected across interior Alaska this weekend. Elevated fire conditions also expected in the Southwest U.S.. Conditions will remain uncomfortably hot across the southern Plains and the Southeast. Read More >

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Fair

81°F

27°C

Humidity 83%
Wind Speed S 7 mph
Barometer 29.94 in
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 21 Jun 3:55 am CDT
Extended Forecast for

4 Miles WSW Grand Isle LA

  • Today

    Today: Partly sunny, with a high near 87. South wind 10 to 15 mph.

    High: 87 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 83. South wind 10 to 15 mph.

    Low: 83 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 88. South wind 10 to 15 mph.

    High: 88 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 83. South wind around 10 mph.

    Low: 83 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 88. Southwest wind 5 to 10 mph.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 82. Southwest wind around 10 mph.

    Low: 82 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 88. West wind 5 to 10 mph.

    High: 88 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 82. Southwest wind around 10 mph.

    Low: 82 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph.

    High: 87 °F

    Mostly Sunny

Detailed Forecast

Today
Partly sunny, with a high near 87. South wind 10 to 15 mph.
Tonight
Mostly cloudy, with a low around 83. South wind 10 to 15 mph.
Monday
Mostly sunny, with a high near 88. South wind 10 to 15 mph.
Monday Night
Partly cloudy, with a low around 83. South wind around 10 mph.
Tuesday
Sunny, with a high near 88. Southwest wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 82. Southwest wind around 10 mph.
Wednesday
Mostly sunny, with a high near 88. West wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 82. Southwest wind around 10 mph.
Thursday
Mostly sunny, with a high near 87. Southwest wind 5 to 10 mph.
Thursday Night
Partly cloudy, with a low around 82. Southwest wind 5 to 10 mph.
Friday
Sunny, with a high near 87. South wind around 5 mph.
Friday Night
Mostly clear, with a low around 83. South wind 5 to 10 mph.
Saturday
Sunny, with a high near 88. South wind around 10 mph.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Grand Isle LA
 29.21°N 90.04°W
2:02 am CDT Jun 21, 2026
4am CDT Jun 21, 2026-6pm CDT Jun 27, 2026
 
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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