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 Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Fair

94°F

34°C

Humidity	54%
Wind Speed	S 14 G 21 mph
Barometer	29.86 in (1009.6 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	106°F (41°C)
Last update	13 Aug 5:51 pm CDT

More Information:

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

Extended Forecast for

Webster Groves MO

Extreme Heat Warning August 13, 06:07pm until August 15, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 13, 06:07pm until August 15, 09:00pm
NOW until 9:00pm Sat
Extreme Heat Warning
Tonight
Low: 77 °F
Mostly Clear
Friday
High: 99 °F
Slight Chance
T-storms then
Sunny
Friday Night
Low: 78 °F
Mostly Clear
Saturday
High: 100 °F
Hot
Saturday Night
Low: 77 °F
Mostly Clear
Sunday
High: 99 °F
Hot
Sunday Night
Low: 74 °F
Chance
T-storms
Monday
High: 88 °F
Slight Chance
Showers then
Slight Chance
T-storms

Detailed Forecast

Tonight

Mostly clear, with a low around 77. South wind around 7 mph.

Friday

A 20 percent chance of showers and thunderstorms before 8am. Mostly cloudy through mid morning, then gradual clearing and hot, with a high near 99. Heat index values as high as 112. South wind around 6 mph.

Friday Night

Mostly clear, with a low around 78. Southeast wind 5 to 7 mph.

Saturday

Partly sunny through mid morning, then becoming sunny and hot, with a high near 100. Heat index values as high as 110. West wind 5 to 7 mph.

Saturday Night

Mostly clear, with a low around 77. Calm wind becoming southwest around 5 mph after midnight.

Sunday

Mostly sunny and hot, with a high near 99.

Sunday Night

A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 74. Chance of precipitation is 40%.

Monday

A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 20%.

Monday Night

Partly cloudy, with a low around 71.

Tuesday

Sunny, with a high near 90.

Tuesday Night

Mostly clear, with a low around 74.

Wednesday

Mostly sunny, with a high near 95.

Wednesday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.