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.

Partly Cloudy

83°F

28°C

Humidity 79%
Wind Speed NW 6 mph
Barometer 29.94 in (1014.0 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index91°F (33°C)
Last update 6 Sep 9:53 am CDT
Extended Forecast for

Jefferson LA

  • Today

    Today: A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Heat index values as high as 105. Northwest wind around 5 mph. Chance of precipitation is 20%.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 78. Calm wind becoming west around 5 mph after midnight.

    Low: 78 °F

    Partly Cloudy

  • Labor Day

    Labor Day: A chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 94. Heat index values as high as 110. Northwest wind around 5 mph. Chance of precipitation is 30%.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 78. Southwest wind around 5 mph becoming calm. Chance of precipitation is 30%.

    Low: 78 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Tuesday

    Tuesday: Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 91. Light east wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 70%.

    High: 91 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 7pm. Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.

    Low: 78 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 90. East wind around 5 mph. Chance of precipitation is 70%.

    High: 90 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm.

    Low: 77 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 90 °F

    T-storms
    Likely

Detailed Forecast

Today
A slight chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 92. Heat index values as high as 105. Northwest wind around 5 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 78. Calm wind becoming west around 5 mph after midnight.
Labor Day
A chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 94. Heat index values as high as 110. Northwest wind around 5 mph. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 78. Southwest wind around 5 mph becoming calm. Chance of precipitation is 30%.
Tuesday
Showers and thunderstorms likely, mainly between 1pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. Mostly sunny, with a high near 91. Light east wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 70%.
Tuesday Night
A chance of thunderstorms before 7pm. Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 90. East wind around 5 mph. Chance of precipitation is 70%.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm.
Thursday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 90. Calm wind becoming northwest around 5 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 77. Southwest wind around 5 mph becoming calm.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming west around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 77. South wind around 5 mph becoming calm in the evening.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Jefferson LA
 29.97°N 90.14°W
Last Update:
6:11 am CDT Sep 6, 2026
Forecast Valid:
10am CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
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