Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Hazardous Weather Conditions

Extreme Heat Warning until August 15, 09:00 PM CDT

Current conditions at

St. Louis, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

94°F

34°C

Humidity	56%
Wind Speed	S 7 mph
Barometer	29.83 in (1009.2 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	107°F (42°C)
Last update	13 Aug 5:54 pm CDT

More Information:

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

Extended Forecast for

Wentzville MO

Extreme Heat Warning August 13, 06:09pm until August 15, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 13, 06:09pm until August 15, 09:00pm
NOW until 9:00pm Sat
Extreme Heat Warning
Tonight
Low: 76 °F
Mostly Clear
Friday
High: 98 °F
Hot
Friday Night
Low: 76 °F
Partly Cloudy
Saturday
High: 98 °F
Hot
Saturday Night
Low: 75 °F
Mostly Clear
Sunday
High: 96 °F
Mostly Sunny
Sunday Night
Low: 71 °F
Chance
T-storms
Monday
High: 86 °F
Slight Chance
Showers then
Slight Chance
T-storms

Detailed Forecast

Tonight

Mostly clear, with a low around 76. South wind 3 to 6 mph.

Friday

Mostly sunny and hot, with a high near 98. Heat index values as high as 111. South wind 3 to 7 mph.

Friday Night

Partly cloudy, with a low around 76. Southeast wind 5 to 7 mph.

Saturday

Mostly sunny and hot, with a high near 98. Heat index values as high as 109. West wind 5 to 7 mph.

Saturday Night

Mostly clear, with a low around 75. Light southwest wind.

Sunday

Mostly sunny, with a high near 96.

Sunday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 71. Chance of precipitation is 40%.

Monday

A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 86. Chance of precipitation is 20%.

Monday Night

Partly cloudy, with a low around 68.

Tuesday

Sunny, with a high near 88.

Tuesday Night

Mostly clear, with a low around 72.

Wednesday

Mostly sunny, with a high near 93.

Wednesday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.