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

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Thunderstorm Light Rain

75°F

24°C

Humidity 82%
Wind Speed SE 9 mph
Barometer 29.74 in (1005.7 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 21 May 9:51 pm CDT
Extended Forecast for

Saint Louis MO

Tornado Watch May 21, 10:42pm until May 22, 12:00am
Click here for hazard details and duration
Tornado Watch
  •  
    Tornado Watch May 21, 10:42pm until May 22, 12:00am

    NOW until 12:00am Wed

    Tornado Watch

  • Tonight

    Low: 62 °F

    Severe
    Thunderstorms

  • Wednesday

    Wednesday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Increasing clouds, with a high near 79. West wind 6 to 9 mph.

    High: 79 °F

    Sunny then
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.

    Low: 63 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming southeast around 6 mph in the morning.

    High: 82 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. Southeast wind around 6 mph. Chance of precipitation is 60%.

    Low: 68 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.

    High: 84 °F

    Showers

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 60.

    Low: 60 °F

    Chance
    T-storms

  • Saturday

    Saturday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

Detailed Forecast

Tonight
Showers and thunderstorms likely, mainly before 1am. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 62. Southeast wind 5 to 8 mph becoming west after midnight. Winds could gust as high as 23 mph. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Increasing clouds, with a high near 79. West wind 6 to 9 mph.
Wednesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Northwest wind around 5 mph becoming calm in the evening.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming southeast around 6 mph in the morning.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 68. Southeast wind around 6 mph. Chance of precipitation is 60%.
Friday
Showers and possibly a thunderstorm. High near 84. Chance of precipitation is 80%.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 60.
Saturday
Sunny, with a high near 79.
Saturday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Partly cloudy, with a low around 62. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 62. Chance of precipitation is 60%.
Memorial Day
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
Monday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 77.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 538 ft)
Last Update:
10:37 pm CDT May 21, 2024
Forecast Valid:
10pm CDT May 21, 2024-6pm CDT May 28, 2024
 
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