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

Severe Storms and Heavy Rain in the Plains; Cool with Mountain Snow in the Great Basin and Rockies

A cold front combining with Imelda remnants will produce severe storms with large to very large hail, damaging winds, and heavy rain across the Central Plains and Middle Mississippi Valley. Storms may also develop in the Upper Midwest. Mountain snow in the North and Central Rockies, and widespread cooler than normal temperatures will follow the fronts passage. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

24°C

75°F

Humidity 82%
Wind Speed S 13 km/h
Barometer 1018.8 mb (30.12 in)
Dewpoint 21°C (69°F)
Visibility 16 km
Last update 20 Sep 9:51 pm CDT
Extended Forecast for

Saint Louis MO

  • Tonight

    Tonight: Isolated showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 23. South wind 11 to 13 km/h. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 23 °C

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly before noon. Mostly cloudy, with a high near 29. South wind 13 to 18 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 37 km/h.

    Chance
    T-storms

    High: 29 °C

  • Saturday
    Night

    Saturday Night: A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 23. South wind 16 to 21 km/h. Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 23 °C

  • Sunday

    Sunday: Showers and thunderstorms, mainly after 2pm. High near 30. South wind 14 to 18 km/h, with gusts as high as 37 km/h. Chance of precipitation is 80%.

    Chance
    T-storms then
    T-storms

    High: 30 °C

  • Sunday
    Night

    Sunday Night: Showers and thunderstorms, mainly before 2am. Low around 17. Southwest wind 11 to 18 km/h becoming northwest after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 80%.

    T-storms

    Low: 17 °C

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 8am. Sunny, with a high near 26.

    Slight Chance
    T-storms then
    Sunny

    High: 26 °C

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 16.

    Mostly Clear

    Low: 16 °C

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 27.

    Partly Sunny
    then Slight
    Chance
    T-storms

    High: 27 °C

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 18.

    Chance
    T-storms

    Low: 18 °C

Detailed Forecast

Tonight
Isolated showers and thunderstorms before 11pm, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 23. South wind 11 to 13 km/h. Chance of precipitation is 20%.
Saturday
A 40 percent chance of showers and thunderstorms, mainly before noon. Mostly cloudy, with a high near 29. South wind 13 to 18 km/h increasing to 19 to 24 km/h in the afternoon. Winds could gust as high as 37 km/h.
Saturday Night
A slight chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 23. South wind 16 to 21 km/h. Chance of precipitation is 20%.
Sunday
Showers and thunderstorms, mainly after 2pm. High near 30. South wind 14 to 18 km/h, with gusts as high as 37 km/h. Chance of precipitation is 80%.
Sunday Night
Showers and thunderstorms, mainly before 2am. Low around 17. Southwest wind 11 to 18 km/h becoming northwest after midnight. Winds could gust as high as 35 km/h. Chance of precipitation is 80%.
Monday
A 20 percent chance of showers and thunderstorms before 8am. Sunny, with a high near 26.
Monday Night
Mostly clear, with a low around 16.
Tuesday
A 20 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 27.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 2am. Mostly cloudy, with a low around 18.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 8am. Partly sunny, with a high near 29.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 19.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 28.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 19.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 29.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Saint Louis MO
 38.64°N 90.23°W (Elev. 164 m)
Last Update:
7:44 pm CDT Sep 20, 2019
Forecast Valid:
10pm CDT Sep 20, 2019-6pm CDT Sep 27, 2019
 
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