Remnants of Arthur and Heavy Rainfall Across the South; Fire Weather Threat in the West

Life-threatening, potentially catastrophic flash flooding expected along the central Gulf Coast as the remnants of Arthur track across the area. Isolated brief tornadoes and damaging gusts remain possible overnight in the Southeast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts of the West Friday. Read More >

Current conditions at

New Orleans, New Orleans International Airport (KMSY)

Lat: 29.99°NLon: 90.25°WElev: 3ft.

A Few Clouds

82°F

28°C

Humidity 90%
Wind Speed S 9 mph
Barometer 29.91 in (1013.3 mb)
Dewpoint 79°F (26°C)
Visibility 8.00 mi
Heat Index91°F (33°C)
Last update 18 Jun 11:53 pm CDT
Extended Forecast for

Jefferson LA

Flood Watch June 19, 12:18am until June 19, 07:00am
Heat Advisory June 19, 10:00am until June 19, 07:00pm
Click here for hazard details and duration
Flood Watch
Heat Advisory
  •  
    Flood Watch June 19, 12:18am until June 19, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • Overnight

    Low: 81 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: A 20 percent chance of showers after 4pm.  Mostly sunny, with a high near 92. Heat index values as high as 111. Southwest wind 5 to 10 mph.

    High: 92 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers after 3am.  Mostly cloudy, with a low around 80. South wind around 5 mph.  Chance of precipitation is 30%.

    Low: 80 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 10am.  Partly sunny, with a high near 90. Heat index values as high as 106. Southwest wind 5 to 10 mph.  Chance of precipitation is 50%.

    High: 90 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am.  Mostly cloudy, with a low around 79. South wind around 5 mph.  Chance of precipitation is 40%.

    Low: 79 °F

    Chance
    Showers

  • Sunday

    Sunday: A 20 percent chance of showers after 7am.  Partly sunny, with a high near 91. South wind 5 to 15 mph.

    High: 91 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 80. South wind around 10 mph.

    Low: 80 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93. Southwest wind 5 to 15 mph.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 81. South wind around 10 mph.
Juneteenth
A 20 percent chance of showers after 4pm. Mostly sunny, with a high near 92. Heat index values as high as 111. Southwest wind 5 to 10 mph.
Friday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers after 3am. Mostly cloudy, with a low around 80. South wind around 5 mph. Chance of precipitation is 30%.
Saturday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 90. Heat index values as high as 106. Southwest wind 5 to 10 mph. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 79. South wind around 5 mph. Chance of precipitation is 40%.
Sunday
A 20 percent chance of showers after 7am. Partly sunny, with a high near 91. South wind 5 to 15 mph.
Sunday Night
Partly cloudy, with a low around 80. South wind around 10 mph.
Monday
Mostly sunny, with a high near 93. Southwest wind 5 to 15 mph.
Monday Night
Mostly clear, with a low around 79. Southwest wind 5 to 10 mph.
Tuesday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. West wind around 5 mph.
Tuesday Night
Partly cloudy, with a low around 78. Southwest wind around 5 mph.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Northwest wind around 5 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 77. West wind around 5 mph.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. West wind around 5 mph.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Jefferson LA
 29.97°N 90.17°W
10:53 pm CDT Jun 18, 2026
12am CDT Jun 19, 2026-6pm CDT Jun 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database