Severe Thunderstorm and Flash Flooding Risks from Southern Plains to Midwest; Heat Wave Developing in the Southeast

Severe thunderstorms and flash flooding will again be possible from the Southern Plains into the Midwest on Friday. Periodic risks of severe thunderstorms, along with flash flooding, are forecast from the Central and Southern Plains to the Great Lakes and Northeast into the Memorial Day weekend. Temperatures across much of the East will run above normal where they will hold into Memorial Day. Read More >

Hazardous Weather Conditions

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Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

75°F

24°C

Humidity	71%
Wind Speed	SE 7 mph
Barometer	30.07 in (1017.2 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Last update	23 May 10:51 pm CDT

More Information:

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

Extended Forecast for

Saint Charles 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
Tonight

Isolated
T-storms
Low: 71 °F
Friday

Mostly Sunny
High: 90 °F
Friday
Night

Partly Cloudy
Low: 70 °F
Saturday

Chance
T-storms
High: 87 °F
Saturday
Night

Partly Cloudy
then Chance
T-storms
Low: 68 °F
Sunday

T-storms
Likely
High: 83 °F
Sunday
Night

Partly Cloudy
Low: 68 °F
Memorial
Day

Partly Sunny
High: 88 °F

Detailed Forecast

Tonight

Isolated showers and thunderstorms before 2am. Mostly cloudy, with a low around 71. East wind around 6 mph becoming south after midnight. Chance of precipitation is 20%.

Friday

Mostly sunny, with a high near 90. Southwest wind 7 to 13 mph, with gusts as high as 21 mph.

Friday Night

Partly cloudy, with a low around 70. South wind around 9 mph.

Saturday

A 30 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 87. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.

Saturday Night

A 30 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68. South wind 6 to 8 mph.

Sunday

Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.

Sunday Night

Partly cloudy, with a low around 68.

Memorial Day

Partly sunny, with a high near 88.

Monday Night

Partly cloudy, with a low around 70.

Tuesday

A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.