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

Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Fair

81°F

27°C

Humidity 86%
Wind Speed Calm
Barometer 29.99 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index88°F (31°C)
Last update 10 Aug 7:35 am CDT
Extended Forecast for

Buras-Triumph LA

  • Today

    Today: Showers and thunderstorms, mainly before 3pm. High near 88. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 88 °F

    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 11pm. Partly cloudy, with a low around 79. East wind 5 to 10 mph.

    Low: 79 °F

    Chance
    T-storms

  • Monday

    Monday: Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 89. Northeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 89 °F

    T-storms

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers and thunderstorms likely after 4am. Partly cloudy, with a low around 79. South wind around 5 mph. Chance of precipitation is 60%.

    Low: 79 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 88. South wind around 5 mph. Chance of precipitation is 70%.

    High: 88 °F

    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. South wind around 5 mph.

    Low: 78 °F

    Partly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly before 1pm. Mostly sunny, with a high near 89. South wind around 5 mph. Chance of precipitation is 70%.

    High: 89 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 80. South wind around 5 mph.

    Low: 80 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: A chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind around 5 mph.

    High: 90 °F

    Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms, mainly before 3pm. High near 88. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 11pm. Partly cloudy, with a low around 79. East wind 5 to 10 mph.
Monday
Showers and possibly a thunderstorm before 1pm, then showers and thunderstorms likely after 1pm. High near 89. Northeast wind around 5 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Monday Night
A slight chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then showers and thunderstorms likely after 4am. Partly cloudy, with a low around 79. South wind around 5 mph. Chance of precipitation is 60%.
Tuesday
Showers and thunderstorms likely, mainly before 1pm. Partly sunny, with a high near 88. South wind around 5 mph. Chance of precipitation is 70%.
Tuesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 78. South wind around 5 mph.
Wednesday
Showers and thunderstorms likely, mainly before 1pm. Mostly sunny, with a high near 89. South wind around 5 mph. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 80. South wind around 5 mph.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 90. South wind around 5 mph.
Thursday Night
Mostly clear, with a low around 80. South wind around 5 mph.
Friday
A chance of showers and thunderstorms. Sunny, with a high near 90. West wind around 5 mph becoming south in the afternoon.
Friday Night
Mostly clear, with a low around 80. South wind around 5 mph.
Saturday
A chance of showers and thunderstorms. Sunny, with a high near 91. Northwest wind around 5 mph becoming southeast in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Buras-Triumph LA
 29.33°N 89.49°W
Last Update:
5:51 am CDT Aug 10, 2025
Forecast Valid:
8am CDT Aug 10, 2025-6pm CDT Aug 16, 2025
 
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