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

Hazardous Weather Conditions

Current conditions at

New Orleans, New Orleans International Airport (KMSY)

Lat: 29.99°NLon: 90.25°WElev: 3ft.

A Few Clouds

91°F

33°C

Humidity 56%
Wind Speed SW 6 mph
Barometer 30.05 in (1017.7 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index100°F (38°C)
Last update 20 Aug 11:53 am CDT
Extended Forecast for

Laplace LA

Heat Advisory August 20, 12:25pm until August 20, 08:00pm
Extreme Heat Warning August 21, 11:00am until August 21, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Heat Advisory August 20, 12:25pm until August 20, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 99 °F

    Hot

  • Tonight

    Tonight: Mostly clear, with a low around 78. Calm wind becoming southwest around 5 mph after midnight.

    Low: 78 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Heat index values as high as 113. West wind around 5 mph.

    High: 99 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 78. Southwest wind around 5 mph becoming northwest in the evening.

    Low: 78 °F

    Chance
    T-storms then
    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. West wind around 5 mph becoming north in the afternoon.

    High: 100 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 78 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: Sunny and hot, with a high near 100. Calm wind becoming north around 5 mph.

    High: 100 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.

    Low: 77 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 99. Heat index values as high as 109. Southwest wind around 5 mph.
Tonight
Mostly clear, with a low around 78. Calm wind becoming southwest around 5 mph after midnight.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 99. Heat index values as high as 113. West wind around 5 mph.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 78. Southwest wind around 5 mph becoming northwest in the evening.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. West wind around 5 mph becoming north in the afternoon.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Mostly clear, with a low around 78. Southwest wind around 5 mph becoming calm. Chance of precipitation is 20%.
Sunday
Sunny and hot, with a high near 100. Calm wind becoming north around 5 mph.
Sunday Night
Mostly clear, with a low around 77. Southwest wind around 5 mph becoming calm in the evening.
Monday
A chance of showers and thunderstorms, mainly after 1pm. Sunny and hot, with a high near 97. Calm wind becoming west around 5 mph.
Monday Night
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 77. South wind around 5 mph becoming calm.
Tuesday
A chance of showers and thunderstorms. Sunny and hot, with a high near 96. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Wednesday
A chance of showers and thunderstorms. Sunny and hot, with a high near 96. Calm wind becoming west around 5 mph.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Laplace LA
 30.07°N 90.5°W
Last Update:
11:22 am CDT Aug 20, 2026
Forecast Valid:
12pm CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation