Severe Thunderstorms in the Ohio Valley and Mid-Atlantic; Heat Continuing in the Central U.S.

Widespread strong to severe thunderstorms are expected from the Upper Ohio Valley into the Mid-Atlantic through Friday, with damaging winds as the primary threat. Dangerous heat will continue from the South-Central U.S. to the Midwest, Ohio/Tennessee valleys, and Mid-Atlantic. Widespread Major to Extreme Heat Risk is forecast into the weekend and will confine to the South-Central U.S. by Labor Day Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Fair

90°F

32°C

Humidity 52%
Wind Speed S 9 mph
Barometer 29.94 in (1012.3 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 3 Sep 9:51 pm CDT
Extended Forecast for

Pine Lawn MO

Extreme Heat Warning September 3, 10:25pm until September 5, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning September 3, 10:25pm until September 5, 08:00pm

    NOW until 8:00pm Sat

    Extreme Heat Warning

  • Tonight

    Low: 81 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 101. Heat index values as high as 107. Southwest wind 3 to 5 mph.

    High: 101 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 79. Light south wind.

    Low: 79 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Heat index values as high as 107. Calm wind becoming northwest around 6 mph in the morning.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 75. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 75 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 70.

    Low: 70 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 94.

    High: 94 °F

    Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 81. Southwest wind around 6 mph.
Friday
Sunny and hot, with a high near 101. Heat index values as high as 107. Southwest wind 3 to 5 mph.
Friday Night
Mostly clear, with a low around 79. Light south wind.
Saturday
Sunny and hot, with a high near 100. Heat index values as high as 107. Calm wind becoming northwest around 6 mph in the morning.
Saturday Night
Mostly clear, with a low around 75. Northwest wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 70.
Labor Day
Sunny, with a high near 94.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Sunny and hot, with a high near 99.
Tuesday Night
Mostly clear, with a low around 78.
Wednesday
Sunny and hot, with a high near 100.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
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ABOUT THIS FORECAST

 
Point Forecast:
Pine Lawn MO
 38.69°N 90.26°W (Elev. 505 ft)
8:56 pm CDT Sep 3, 2026
10pm CDT Sep 3, 2026-6pm CDT Sep 10, 2026
 
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