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

Thunderstorms and Heavy Rainfall in the Mid-Atlantic; Fire Weather Concerns in the West

Thunderstorms are expected to bring heavy rain and potential significant flash and urban flooding to the Mid-Atlantic on Thursday, especially along the I-95 urban corridor. Dry conditions, gusty winds, and isolated dry thunderstorms will continue to bring a critical fire weather threat to the northwestern Great Basin into the interior Northwest through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Slidell, Slidell Airport (KASD)

Lat: 30.34°NLon: 89.82°WElev: 30ft.

Fair

72°F

22°C

Humidity 97%
Wind Speed Calm
Barometer 30.01 in (1016.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Last update 31 Jul 1:53 am CDT
Extended Forecast for

Slidell Airport LA

Heat Advisory July 31, 11:00am until July 31, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 75. Calm wind.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly between 3pm and 4pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 110. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 95 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 11pm. Partly cloudy, with a low around 76. South wind around 5 mph becoming calm.

    Low: 76 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 109. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 70%.

    High: 96 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Chance
    T-storms

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly after 1pm. Mostly sunny and hot, with a high near 95. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%.

    High: 95 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. Calm wind.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 1pm. Sunny, with a high near 94. Calm wind becoming north around 5 mph. Chance of precipitation is 60%.

    High: 94 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 1am. Mostly clear, with a low around 73. Calm wind.

    Low: 73 °F

    Chance
    T-storms

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 75. Calm wind.
Thursday
Showers and thunderstorms likely, mainly between 3pm and 4pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 110. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 11pm. Partly cloudy, with a low around 76. South wind around 5 mph becoming calm.
Friday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 109. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 74. Calm wind.
Saturday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny and hot, with a high near 95. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 60%.
Saturday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 73. Calm wind.
Sunday
Showers and thunderstorms likely, mainly after 1pm. Sunny, with a high near 94. Calm wind becoming north around 5 mph. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms before 1am. Mostly clear, with a low around 73. Calm wind.
Monday
Showers and thunderstorms likely, mainly after 1pm. Mostly sunny, with a high near 92. Calm wind becoming east around 5 mph in the afternoon.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.
Tuesday
Showers and thunderstorms likely. Mostly sunny, with a high near 92. Calm wind becoming southeast around 5 mph in the afternoon.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 73. Calm wind.
Wednesday
Showers and thunderstorms likely. Mostly sunny, with a high near 93. Calm wind becoming south around 5 mph in the afternoon.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Slidell Airport LA
 30.34°N 89.81°W
Last Update:
12:25 am CDT Jul 31, 2025
Forecast Valid:
2am CDT Jul 31, 2025-6pm CDT Aug 6, 2025
 
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