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.

Mostly Cloudy

89°F

32°C

Humidity 70%
Wind Speed W 13 mph
Barometer 30.04 in (1017.5 mb)
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 19 Aug 9:53 am CDT
Extended Forecast for

Destrehan LA

Heat Advisory August 19, 11:00am until August 19, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Mostly sunny and hot, with a high near 96. Heat index values as high as 110. Southwest wind around 5 mph.

    High: 96 °F

    Hot

  • Tonight

    Tonight: Partly cloudy, with a low around 78. Southwest wind around 5 mph.

    Low: 78 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny and hot, with a high near 97. Heat index values as high as 109. West wind around 5 mph.

    High: 97 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 79. Southwest wind around 5 mph.

    Low: 79 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 98. West wind around 5 mph.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 79. Southwest wind around 5 mph.

    Low: 79 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. West wind around 5 mph.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 78. Southwest wind around 5 mph.

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 98. West wind around 5 mph becoming northeast in the afternoon.

    High: 98 °F

    Hot

Detailed Forecast

Today
Mostly sunny and hot, with a high near 96. Heat index values as high as 110. Southwest wind around 5 mph.
Tonight
Partly cloudy, with a low around 78. Southwest wind around 5 mph.
Thursday
Sunny and hot, with a high near 97. Heat index values as high as 109. 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 98. West wind around 5 mph.
Friday Night
Partly cloudy, with a low around 79. Southwest wind around 5 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 97. West wind around 5 mph.
Saturday Night
Mostly clear, with a low around 78. Southwest wind around 5 mph.
Sunday
Sunny and hot, with a high near 98. West wind around 5 mph becoming northeast in the afternoon.
Sunday Night
Mostly clear, with a low around 78. Southwest wind around 5 mph.
Monday
A slight chance of showers and thunderstorms. Sunny and hot, with a high near 97. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 78. Southeast wind around 5 mph becoming calm after midnight.
Tuesday
A slight chance of showers and thunderstorms. Sunny and hot, with a high near 97. Calm wind becoming west around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Destrehan LA
 29.95°N 90.38°W
Last Update:
2:01 am CDT Aug 19, 2026
Forecast Valid:
10am CDT Aug 19, 2026-6pm CDT Aug 25, 2026
 
Forecast Discussion
 
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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