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

New Orleans, New Orleans International Airport (KMSY)

Lat: 29.99°NLon: 90.25°WElev: 3ft.

Mostly Cloudy

84°F

29°C

Humidity 80%
Wind Speed Calm
Barometer 29.94 in (1014.0 mb)
Dewpoint 77°F (25°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 5 Sep 12:53 pm CDT
Extended Forecast for

Jefferson LA

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely, mainly between 2pm and 5pm. Partly sunny, with a high near 89. North wind around 5 mph becoming south. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 89 °F

    T-storms
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 76. South wind around 5 mph becoming calm.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Sunny, with a high near 91. Heat index values as high as 105. Calm wind becoming northwest around 5 mph.

    High: 91 °F

    Sunny then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. West wind around 5 mph.

    Low: 77 °F

    Mostly Clear

  • Labor Day

    Labor Day: A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. West wind around 5 mph becoming east in the afternoon.

    High: 93 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 78. Southwest wind around 5 mph becoming calm.

    Low: 78 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 90. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.

    High: 90 °F

    Chance
    T-storms then
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind becoming east around 5 mph in the morning.

    High: 89 °F

    T-storms
    Likely

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly between 2pm and 5pm. Partly sunny, with a high near 89. North wind around 5 mph becoming south. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 76. South wind around 5 mph becoming calm.
Sunday
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Sunny, with a high near 91. Heat index values as high as 105. Calm wind becoming northwest around 5 mph.
Sunday Night
Mostly clear, with a low around 77. West wind around 5 mph.
Labor Day
A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 93. West wind around 5 mph becoming east in the afternoon.
Monday Night
Partly cloudy, with a low around 78. Southwest wind around 5 mph becoming calm.
Tuesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1pm. High near 90. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 80%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 89. Calm wind becoming east around 5 mph in the morning.
Wednesday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. Calm wind.
Thursday
Showers and thunderstorms likely. Mostly sunny, with a high near 90. Calm wind becoming north around 5 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. South wind around 5 mph becoming calm.
Friday
A chance of showers and thunderstorms. Sunny, with a high near 91. Calm wind becoming north around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Jefferson LA
 29.95°N 90.19°W
Last Update:
2:01 am CDT Sep 5, 2026
Forecast Valid:
1pm CDT Sep 5, 2026-6pm CDT Sep 11, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation