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

Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Galliano, South Lafourche Airport (KGAO)

Lat: 29.44°NLon: 90.26°WElev: 0ft.

Fair

80°F

27°C

Humidity 86%
Wind Speed Calm
Barometer 30.00 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 15 Jul 8:55 pm CDT
Extended Forecast for

10 Miles ESE Pilottown LA

Flood Watch July 16, 01:00pm until July 19, 01:00am
Click here for hazard details and duration
Flood Watch

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after 3am. Partly cloudy, with a low around 81. Northwest wind 5 to 10 mph.

    Low: 81 °F

    Partly Cloudy
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 4pm. Partly sunny, with a high near 90. Northwest wind around 10 mph becoming south in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 90 °F

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 7pm, then showers and possibly a thunderstorm after 7pm. Some of the storms could produce heavy rainfall. Low around 78. West wind 5 to 10 mph becoming east after midnight. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.

    Low: 78 °F

    Heavy Rain

  • Thursday

    Thursday: Showers and possibly a thunderstorm before 10am, then showers and thunderstorms between 10am and 4pm, then showers and possibly a thunderstorm after 4pm. High near 87. South wind 10 to 15 mph. Chance of precipitation is 100%.

    High: 87 °F

    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7pm. Low around 80. South wind around 15 mph. Chance of precipitation is 100%.

    Low: 80 °F

    T-storms
    Likely then
    T-storms

  • Friday

    Friday: Showers and possibly a thunderstorm before 10am, then showers and thunderstorms, mainly after 10am. High near 89. South wind around 15 mph. Chance of precipitation is 90%.

    High: 89 °F

    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 82. South wind around 10 mph.

    Low: 82 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 1pm. Mostly sunny, with a high near 89. South wind around 10 mph. Chance of precipitation is 60%.

    High: 89 °F

    T-storms
    Likely

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 82. South wind around 5 mph.

    Low: 82 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Tonight
A 40 percent chance of showers and thunderstorms, mainly after 3am. Partly cloudy, with a low around 81. Northwest wind 5 to 10 mph.
Wednesday
Showers and thunderstorms likely, mainly after 4pm. Partly sunny, with a high near 90. Northwest wind around 10 mph becoming south in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers and thunderstorms before 7pm, then showers and possibly a thunderstorm after 7pm. Some of the storms could produce heavy rainfall. Low around 78. West wind 5 to 10 mph becoming east after midnight. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
Thursday
Showers and possibly a thunderstorm before 10am, then showers and thunderstorms between 10am and 4pm, then showers and possibly a thunderstorm after 4pm. High near 87. South wind 10 to 15 mph. Chance of precipitation is 100%.
Thursday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 7pm. Low around 80. South wind around 15 mph. Chance of precipitation is 100%.
Friday
Showers and possibly a thunderstorm before 10am, then showers and thunderstorms, mainly after 10am. High near 89. South wind around 15 mph. Chance of precipitation is 90%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 82. South wind around 10 mph.
Saturday
Showers and thunderstorms likely, mainly before 1pm. Mostly sunny, with a high near 89. South wind around 10 mph. Chance of precipitation is 60%.
Saturday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 82. South wind around 5 mph.
Sunday
A chance of showers and thunderstorms. Sunny, with a high near 89. Southwest wind around 5 mph.
Sunday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 82. South wind around 5 mph.
Monday
A chance of showers and thunderstorms. Sunny, with a high near 89. South wind around 5 mph.
Monday Night
A chance of showers and thunderstorms. Mostly clear, with a low around 81. Southwest wind around 5 mph.
Tuesday
A chance of showers and thunderstorms. Sunny, with a high near 89. South wind around 5 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles ESE Pilottown LA
 29.11°N 89.11°W
Last Update:
6:36 pm CDT Jul 15, 2025
Forecast Valid:
9pm CDT Jul 15, 2025-6pm CDT Jul 22, 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