Heat Across The Southern U.S.; Storms And Heavy Rain in Central U.S.

The early-season heat across portions of the Southern U.S. will continue for much of this week with more potential record high temperatures. On Tuesday, expect 90s and triple digits from the southern Plains into parts of the Lower Mississippi Valley. Also on Tuesday, strong to severe thunderstorms and locally heavy rainfall will be possible from the central Plains into the Mid Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

26°C

79°F

Humidity 42%
Wind Speed Vrbl 6 km/h
Barometer 1016.8 mb (30.06 in)
Dewpoint 12°C (54°F)
Visibility 16 km
Heat Index26°C (79°F)
Last update 17 May 9:51 am CDT
Extended Forecast for

Saint Louis MO

  • Today

    Today: Mostly sunny, with a high near 28. South wind 8 to 14 km/h.

    Mostly Sunny

    High: 28 °C

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 3am.  Mostly cloudy, with a low around 17. South wind 10 to 13 km/h.

    Mostly Cloudy
    then Chance
    T-storms

    Low: 17 °C

  • Wednesday

    Wednesday: Showers and thunderstorms, mainly before 11am. Some of the storms could produce heavy rainfall.  High near 29. South wind 13 to 16 km/h becoming west in the afternoon. Winds could gust as high as 32 km/h.  Chance of precipitation is 90%.

    Heavy Rain
    then Chance
    T-storms

    High: 29 °C

  • Wednesday
    Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 18. West wind 8 to 13 km/h becoming light northwest  after midnight.

    Slight Chance
    T-storms

    Low: 18 °C

  • Thursday

    Thursday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 31. Light and variable wind becoming south 8 to 13 km/h in the morning.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    High: 31 °C

  • Thursday
    Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 2am.  Mostly clear, with a low around 23.

    Slight Chance
    T-storms

    Low: 23 °C

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms, mainly after 2pm.  Mostly sunny, with a high near 32.

    Chance
    T-storms

    High: 32 °C

  • Friday
    Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm.  Mostly cloudy, with a low around 16. Chance of precipitation is 60%.

    Showers
    Likely

    Low: 16 °C

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a high near 21. Chance of precipitation is 60%.

    Showers
    Likely

    High: 21 °C

Detailed Forecast

Today
Mostly sunny, with a high near 28. South wind 8 to 14 km/h.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 3am. Mostly cloudy, with a low around 17. South wind 10 to 13 km/h.
Wednesday
Showers and thunderstorms, mainly before 11am. Some of the storms could produce heavy rainfall. High near 29. South wind 13 to 16 km/h becoming west in the afternoon. Winds could gust as high as 32 km/h. Chance of precipitation is 90%.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 18. West wind 8 to 13 km/h becoming light northwest after midnight.
Thursday
A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 31. Light and variable wind becoming south 8 to 13 km/h in the morning. Chance of precipitation is 20%.
Thursday Night
A 20 percent chance of showers and thunderstorms before 2am. Mostly clear, with a low around 23.
Friday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 32.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 8pm. Mostly cloudy, with a low around 16. Chance of precipitation is 60%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 21. Chance of precipitation is 60%.
Saturday Night
Showers likely, mainly before 8pm. Partly cloudy, with a low around 9. Chance of precipitation is 60%.
Sunday
Mostly sunny, with a high near 21.
Sunday Night
Partly cloudy, with a low around 11.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 22.
Click Map For Forecast
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 164 m)
9:42 am CDT May 17, 2022
10am CDT May 17, 2022-6pm CDT May 23, 2022
 
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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