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 Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Thunderstorm in Vicinity Light Rain

74°F

23°C

Humidity	85%
Wind Speed	Calm
Barometer	29.75 in (1007.0 mb)
Dewpoint	69°F (21°C)
Visibility	9.00 mi
Last update	21 May 8:53 pm CDT

More Information:

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

Extended Forecast for

Kimmswick 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
T-storms
Likely
Wednesday
High: 79 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 62 °F
T-storms
Likely
Thursday
High: 82 °F
Chance
T-storms
Thursday Night
Low: 66 °F
Chance
T-storms then
Showers
Likely
Friday
High: 85 °F
Showers
Friday Night
Low: 60 °F
Chance
T-storms
Saturday
High: 81 °F
Sunny

Detailed Forecast

Tonight

Showers and thunderstorms likely, mainly before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 62. Southwest wind 5 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

Wednesday

A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 79. Northwest wind 5 to 8 mph.

Wednesday Night

Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Light and variable wind. Chance of precipitation is 60%.

Thursday

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Calm wind becoming south around 6 mph in the afternoon.

Thursday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Southeast wind 3 to 5 mph. Chance of precipitation is 60%.

Friday

Showers and possibly a thunderstorm. High near 85. Chance of precipitation is 80%.

Friday Night

A 50 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 60.

Saturday

Sunny, with a high near 81.

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

Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 60%.

Sunday Night

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

Memorial Day

A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.

Monday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.

Tuesday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78.