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

Severe Thunderstorms in the Central U.S. Today; Dangerous Heatwave Coming to the West

Isolated to scattered severe thunderstorms will be possible today and Thursday across parts of the central Plains into the Upper Midwest and mid Mississippi Valley. Damaging winds, large hail and flooding should be the main threats. A record-breaking and dangerous heatwave is coming to the West. Dozens of daily high temperature records could be broken starting this weekend. Read More >

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

85°F

29°C

Humidity 30%
Wind Speed S 16 G 25 mph
Barometer 30.04 in (1016.2 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index83°F (28°C)
Last update 23 Jun 1:51 pm CDT
Extended Forecast for

Lambert-St. Louis International Airport MO

  • This
    Afternoon

    This Afternoon: Sunny, with a high near 88. South wind around 14 mph, with gusts as high as 21 mph.

    Sunny

    High: 88 °F

  • Tonight

    Tonight: Mostly clear, with a low around 69. South wind 10 to 15 mph, with gusts as high as 22 mph.

    Mostly Clear

    Low: 69 °F

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90. South wind around 11 mph, with gusts as high as 20 mph.

    Chance
    T-storms

    High: 90 °F

  • Thursday
    Night

    Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. South wind 10 to 14 mph, with gusts as high as 23 mph.

    Chance
    T-storms

    Low: 76 °F

  • Friday

    Friday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 93. South wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.

    Showers
    Likely then
    T-storms
    Likely

    High: 93 °F

  • Friday
    Night

    Friday Night: Showers and thunderstorms likely, mainly after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.

    T-storms
    Likely

    Low: 76 °F

  • Saturday

    Saturday: Showers and thunderstorms. High near 87. Chance of precipitation is 80%.

    T-storms

    High: 87 °F

  • Saturday
    Night

    Saturday Night: Showers and thunderstorms, mainly before 2am. Low around 72. Chance of precipitation is 80%.

    T-storms

    Low: 72 °F

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.

    Chance
    T-storms

    High: 86 °F

Detailed Forecast

This Afternoon
Sunny, with a high near 88. South wind around 14 mph, with gusts as high as 21 mph.
Tonight
Mostly clear, with a low around 69. South wind 10 to 15 mph, with gusts as high as 22 mph.
Thursday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 90. South wind around 11 mph, with gusts as high as 20 mph.
Thursday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 76. South wind 10 to 14 mph, with gusts as high as 23 mph.
Friday
A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 93. South wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely, mainly after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%.
Saturday
Showers and thunderstorms. High near 87. Chance of precipitation is 80%.
Saturday Night
Showers and thunderstorms, mainly before 2am. Low around 72. Chance of precipitation is 80%.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Monday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Lambert-St. Louis International Airport MO
 38.76°N 90.37°W (Elev. 551 ft)
Last Update:
1:42 pm CDT Jun 23, 2021
Forecast Valid:
2pm CDT Jun 23, 2021-6pm CDT Jun 29, 2021
 
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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