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

Extreme Fire Weather Concerns for the Western U.S.; Severe Weather and Flooding Threats for the Central U.S.

Extremely critical fire weather conditions are expected to develop across the Great Basin and Southwest today, and exceptionally dry and windy conditions will promote rapid wildfire spread through the weekend. Scattered severe thunderstorms and heavy rain are possible across parts of the Ozark Plateau into lower Ohio Valley and parts of the northern Rockies into adjacent Great Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Slidell, Slidell Airport (KASD)

Lat: 30.34°NLon: 89.82°WElev: 30ft.

Fair

81°F

27°C

Humidity 85%
Wind Speed S 3 mph
Barometer 30.08 in (1018.4 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 27 Jun 12:53 am CDT
Extended Forecast for

Mandeville LA

Heat Advisory June 27, 11:00am until June 27, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 81. South wind around 5 mph.

    Low: 81 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Heat index values as high as 107. South wind around 5 mph.

    High: 94 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 78. Southwest wind 5 to 10 mph.

    Low: 78 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 95. Heat index values as high as 106. South wind around 5 mph.

    High: 95 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 78. South wind around 5 mph becoming west after midnight.

    Low: 78 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.

    High: 95 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 78. Calm wind.

    Low: 78 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 95. Calm wind.

    High: 95 °F

    Sunny then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Calm wind.

    Low: 77 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 81. South wind around 5 mph.
Saturday
Sunny, with a high near 94. Heat index values as high as 107. South wind around 5 mph.
Saturday Night
Mostly clear, with a low around 78. Southwest wind 5 to 10 mph.
Sunday
Sunny and hot, with a high near 95. Heat index values as high as 106. South wind around 5 mph.
Sunday Night
Clear, with a low around 78. South wind around 5 mph becoming west after midnight.
Monday
Sunny and hot, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 78. Calm wind.
Tuesday
A 50 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 95. Calm wind.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 77. Calm wind.
Wednesday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.
Thursday
A chance of showers and thunderstorms. Mostly sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mandeville LA
 30.38°N 90.07°W
Last Update:
12:26 am CDT Jun 27, 2026
Forecast Valid:
1am CDT Jun 27, 2026-6pm CDT Jul 3, 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