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

Significant Outbreak Of Severe Thunderstorms, Violent Tornadoes, And Heavy Rain In The Plains Today

A potent spring storm system is expected to produce an outbreak of severe weather in parts of the Plains today. Very large hail, damaging winds, flash flooding, and large/violent tornadoes are possible. The area most likely to experience significant tornadoes stretches from the Texas Hill Country through central Oklahoma. Residents should review severe weather safety and heed any warnings. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

69°F

21°C

Humidity 47%
Wind Speed N 5 mph
Barometer 30.09 in (1018.3 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 20 May 1:51 pm CDT
Extended Forecast for

Maryland Heights MO

Flood Warning until further notice
Click here for hazard details and duration
Flood Warning until further notice
  •  
    Flood Warning until further notice

    NOW until further notice

    Flood Warning

  • This
    Afternoon

    This Afternoon: Mostly sunny, with a high near 70. North wind around 8 mph.

    Mostly Sunny

    High: 70 °F

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 53. East wind 7 to 13 mph, with gusts as high as 24 mph.

    Mostly Cloudy
    then Chance
    T-storms

    Low: 53 °F

  • Tuesday

    Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 81. Breezy, with a southeast wind 14 to 20 mph, with gusts as high as 31 mph.

    Chance
    T-storms and
    Breezy

    High: 81 °F

  • Tuesday
    Night

    Tuesday Night: Showers and thunderstorms, mainly before 2am. Some of the storms could produce heavy rainfall. Low around 61. Breezy, with a southeast wind 16 to 21 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 100%.

    Heavy Rain
    and Breezy
    then Heavy
    Rain

    Low: 61 °F

  • Wednesday

    Wednesday: Mostly sunny, with a high near 89. South wind 8 to 11 mph, with gusts as high as 21 mph.

    Mostly Sunny

    High: 89 °F

  • Wednesday
    Night

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

    Mostly Clear

    Low: 70 °F

  • Thursday

    Thursday: A chance of showers and thunderstorms between 8am and 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.

    Chance
    T-storms

    High: 89 °F

  • Thursday
    Night

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

    Mostly Clear

    Low: 70 °F

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 70. North wind around 8 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 4am. Mostly cloudy, with a low around 53. East wind 7 to 13 mph, with gusts as high as 24 mph.
Tuesday
A 30 percent chance of showers and thunderstorms, mainly before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 81. Breezy, with a southeast wind 14 to 20 mph, with gusts as high as 31 mph.
Tuesday Night
Showers and thunderstorms, mainly before 2am. Some of the storms could produce heavy rainfall. Low around 61. Breezy, with a southeast wind 16 to 21 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 100%.
Wednesday
Mostly sunny, with a high near 89. South wind 8 to 11 mph, with gusts as high as 21 mph.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
A chance of showers and thunderstorms between 8am and 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Thursday Night
Mostly clear, with a low around 70.
Friday
Mostly sunny, with a high near 89.
Friday Night
Partly cloudy, with a low around 68.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Click Map For Forecast
Disclaimer
Map Legend
Point Forecast:
Maryland Heights MO
 38.72°N 90.48°W (Elev. 440 ft)
Last Update:
11:44 am CDT May 20, 2019
Forecast Valid:
2pm CDT May 20, 2019-6pm CDT May 26, 2019
 
Forecast Discussion
 
Get as KML Get as XML

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