Hazardous Weather Conditions
Current conditions at
New Orleans, New Orleans International Airport (KMSY)
Lat: 29.99°NLon: 90.25°WElev: 3ft.
Mostly Cloudy
93°F
34°C
| Humidity | 54% |
| Wind Speed | Vrbl 5 mph |
| Barometer | 30.01 in (1016.4 mb) |
| Dewpoint | 74°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 103°F (39°C) |
| Last update | 19 Aug 1:53 pm CDT |
Extended Forecast for
Jefferson LA
Heat Advisory August 20, 11:00am until August 20, 08:00pm
Heat Advisory August 19, 02:43pm until August 19, 08:00pm
NOW until 8:00pm Wed
Heat Advisory
This Afternoon
High: 96 °F
Slight Chance
T-stormsTonight
Low: 79 °F
Partly Cloudy
Thursday
High: 96 °F
Hot
Thursday Night
Low: 79 °F
Mostly Clear
Friday
High: 96 °F
Sunny then
Slight Chance
T-stormsFriday Night
Low: 79 °F
Slight Chance
T-storms then
Slight Chance
ShowersSaturday
High: 95 °F
Sunny then
Slight Chance
T-stormsSaturday Night
Low: 79 °F
Partly Cloudy
Detailed Forecast
This Afternoon
A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny and hot, with a high near 96. Heat index values as high as 110. West wind around 5 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 79. Southwest wind around 5 mph.
Thursday
Mostly sunny and hot, with a high near 96. Heat index values as high as 107. West wind around 5 mph.
Thursday Night
Mostly clear, with a low around 79. Southwest wind around 5 mph.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96. West wind around 5 mph.
Friday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 79. West wind around 5 mph. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95. Northwest wind around 5 mph.
Saturday Night
Partly cloudy, with a low around 79. West wind around 5 mph.
Sunday
Sunny and hot, with a high near 97. West wind around 5 mph becoming east in the afternoon.
Sunday Night
Partly cloudy, with a low around 79. South wind around 5 mph becoming west after midnight.
Monday
A slight chance of showers and thunderstorms. Sunny and hot, with a high near 97. Calm wind becoming northeast around 5 mph in the afternoon.
Monday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 79. South wind around 5 mph becoming calm in the evening.
Tuesday
A chance of showers and thunderstorms. Sunny and hot, with a high near 96. Calm wind becoming northwest around 5 mph in the afternoon.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Jefferson LA
29.95°N 90.19°W
29.95°N 90.19°W
2:02 pm CDT Aug 19, 2026
2pm CDT Aug 19, 2026-6pm CDT Aug 25, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
