Excessive Rainfall and Potential Tropical Cyclone in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce locally considerable flash flooding over parts of the northwestern Gulf Coast, lower Mississippi River Valley, and Deep South through Thursday. Potential Tropical Cyclone One is forecast to become a tropical storm (Arthur) as it moves along or just off the northwestern Gulf coast through Wednesday. An outbreak of severe weather is forecast in the Midwest Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Louisiana Regional Airport (KREG)

Lat: 30.17°NLon: 90.94°WElev: 14ft.

Mostly Cloudy

78°F

26°C

Humidity 96%
Wind Speed Calm
Barometer 29.82 in
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 17 Jun 5:35 am CDT
Extended Forecast for

2 Miles SE Plaquemine LA

Flood Watch June 17, 05:46am until June 19, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 17, 05:46am until June 19, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Overnight

    Low: 75 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 11am.  Patchy fog between 10am and 11am.  Otherwise, mostly cloudy, with a high near 84. South wind 5 to 15 mph.  New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Chance
    T-storms and
    Patchy Fog

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5am.  Low around 76. Windy, with a south wind 25 to 35 mph decreasing to 10 to 20 mph. Winds could gust as high as 45 mph.  Chance of precipitation is 80%. New rainfall amounts between 2 and 3 inches possible.

    Low: 76 °F

    T-storms and
    Windy

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 3pm. Some of the storms could produce heavy rainfall.  High near 89. Heat index values as high as 106. Southwest wind 10 to 15 mph.  Chance of precipitation is 80%.

    High: 89 °F

    Heavy Rain

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 4am, then a slight chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 79. South wind 5 to 10 mph.  Chance of precipitation is 20%.

    Low: 79 °F

    Slight Chance
    T-storms

  • Juneteenth

    Juneteenth: Showers and thunderstorms likely, mainly after 1pm.  Mostly sunny, with a high near 92. South wind around 5 mph.  Chance of precipitation is 70%.

    High: 92 °F

    T-storms
    Likely

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms.  Mostly cloudy, with a low around 77. South wind around 5 mph becoming calm.  Chance of precipitation is 20%.

    Low: 77 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms.  Partly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 75. South wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 50 percent chance of showers and thunderstorms, mainly after 11am. Patchy fog between 10am and 11am. Otherwise, mostly cloudy, with a high near 84. South wind 5 to 15 mph. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 5am. Low around 76. Windy, with a south wind 25 to 35 mph decreasing to 10 to 20 mph. Winds could gust as high as 45 mph. Chance of precipitation is 80%. New rainfall amounts between 2 and 3 inches possible.
Thursday
Showers and thunderstorms, mainly before 3pm. Some of the storms could produce heavy rainfall. High near 89. Heat index values as high as 106. Southwest wind 10 to 15 mph. Chance of precipitation is 80%.
Thursday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 79. South wind 5 to 10 mph. Chance of precipitation is 20%.
Juneteenth
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 92. South wind around 5 mph. Chance of precipitation is 70%.
Friday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 77. South wind around 5 mph becoming calm. Chance of precipitation is 20%.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.
Saturday Night
Mostly cloudy, with a low around 77. South wind around 5 mph.
Sunday
Mostly sunny, with a high near 91. Southwest wind 5 to 10 mph.
Sunday Night
Partly cloudy, with a low around 78. South wind 5 to 10 mph.
Monday
Sunny, with a high near 93. Southwest wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm after midnight.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 94. Calm wind becoming southwest around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Plaquemine LA
 30.27°N 91.21°W
5:31 am CDT Jun 17, 2026
5am CDT Jun 17, 2026-6pm CDT Jun 23, 2026
 
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Additional Resources

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