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.

Fair

76°F

24°C

Humidity 97%
Wind Speed Calm
Barometer 29.89 in (1012.4 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index75°F (24°C)
Last update 6 Sep 2:53 am CDT
Extended Forecast for

Jefferson LA

  • Overnight

    Overnight: Mostly clear, with a low around 76. Calm wind.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Heat index values as high as 105. West wind around 5 mph becoming north in the afternoon.

    High: 92 °F

    Sunny then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 77. Calm wind becoming southwest around 5 mph.

    Low: 77 °F

    Partly Cloudy

  • Labor Day

    Labor Day: A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Heat index values as high as 109. West wind around 5 mph.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers, then showers and thunderstorms likely after 10am. Mostly sunny, with a high near 91. Light southeast wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 70%.

    High: 91 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming calm in the evening.

    Low: 78 °F

    Slight Chance
    T-storms

  • 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

    T-storms
    Likely

  • Wednesday Night

    Wednesday Night: A slight 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

Detailed Forecast

Overnight
Mostly clear, with a low around 76. Calm wind.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Heat index values as high as 105. West wind around 5 mph becoming north in the afternoon.
Sunday Night
Partly cloudy, with a low around 77. Calm wind becoming southwest around 5 mph.
Labor Day
A 50 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 94. Heat index values as high as 109. West wind around 5 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. South wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers, then showers and thunderstorms likely after 10am. Mostly sunny, with a high near 91. Light southeast wind becoming east 5 to 10 mph in the morning. Chance of precipitation is 70%.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 78. Southeast wind around 5 mph becoming calm in the evening.
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 slight 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 north around 5 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 77. South wind around 5 mph becoming calm.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 77. South wind around 5 mph becoming calm.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 91. Calm wind becoming northeast around 5 mph in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
Jefferson LA
 29.97°N 90.19°W
Last Update:
6:14 pm CDT Sep 5, 2026
Forecast Valid:
3am CDT Sep 6, 2026-6pm CDT Sep 12, 2026
 
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Additional Resources

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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