Active Weather Pattern Expected From the Midwest to the Southern Plains; Dangerous Heat Likely in Southern Texas

A strong storm system will bring numerous to widespread severe thunderstorms across portions of the Midwest and Upper Great Lakes Tuesday. Tornadoes (a few strong), damaging winds and large hail are expected. Record high temperatures will be possible over southern Texas the next several days. This may lead to dangerous heat concerns especially for areas already without power. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast and Breezy

86°F

30°C

Humidity	46%
Wind Speed	SW 21 G 30 mph
Barometer	29.70 in (1004.4 mb)
Dewpoint	63°F (17°C)
Visibility	10.00 mi
Heat Index	87°F (31°C)
Last update	21 May 6:51 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Creve Coeur MO

Tornado Watch until May 22, 12:00am

Click here for hazard details and duration

Tornado Watch

Tornado Watch until May 22, 12:00am
NOW until 12:00am Wed
Tornado Watch
Tonight
Low: 62 °F
Severe
Thunderstorms
then Chance
T-storms
Wednesday
High: 78 °F
Sunny then
Chance
T-storms
Wednesday Night
Low: 62 °F
Chance
T-storms
Thursday
High: 81 °F
Chance
T-storms
Thursday Night
Low: 67 °F
Chance
T-storms then
Showers
Likely
Friday
High: 83 °F
Showers
Friday Night
Low: 59 °F
Chance
T-storms
Saturday
High: 79 °F
Sunny

Detailed Forecast

Tonight

Showers and thunderstorms, mainly before midnight. Some of the storms could be severe and produce heavy rainfall. Low around 62. South wind 12 to 17 mph becoming west 6 to 11 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 90%.

Wednesday

A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 78. West wind 6 to 8 mph.

Wednesday Night

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62. 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 81. Light and variable 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 67. Southeast wind around 6 mph. Chance of precipitation is 60%.

Friday

Showers and possibly a thunderstorm. High near 83. Chance of precipitation is 80%.

Friday Night

A 40 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 59.

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 80. Chance of precipitation is 60%.

Sunday Night

Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 61. Chance of precipitation is 60%.

Memorial Day

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.

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.