Showers and Storms in the East; Dangerously Hot and Dry in the West

Scattered showers and storms are expected across portions of the Central and Eastern U.S. through the end of the week. Meanwhile, dangerous heat will intensify across the Desert Southwest and Intermountain West. Hot, dry weather and increasing winds will allow elevated wildfire conditions to return to the northern Intermountain West, where air quality issues persist from ongoing fires. Read More >

Hazardous Weather Conditions

Extreme Heat Warning in effect from August 9, 12:00 PM CDT until August 12, 08:00 PM CDT

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Mostly Cloudy

90°F

32°C

Humidity	59%
Wind Speed	S 14 mph
Barometer	29.96 in (1013.1 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	99°F (37°C)
Last update	9 Aug 1:51 pm CDT

More Information:

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

Extended Forecast for

Brentwood MO

Extreme Heat Warning until August 12, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning until August 12, 08:00pm
NOW until 8:00pm Wed
Extreme Heat Warning
This Afternoon
High: 94 °F
Mostly Sunny
Tonight
Low: 77 °F
Mostly Clear
Monday
High: 98 °F
Hot
Monday Night
Low: 79 °F
Partly Cloudy
Tuesday
High: 98 °F
Hot
Tuesday Night
Low: 79 °F
Partly Cloudy
Wednesday
High: 95 °F
Slight Chance
T-storms
Wednesday Night
Low: 76 °F
Chance
T-storms

Detailed Forecast

This Afternoon

Mostly sunny, with a high near 94. Heat index values as high as 102. South wind around 10 mph.

Tonight

Mostly clear, with a low around 77. South wind 6 to 10 mph.

Monday

Mostly sunny and hot, with a high near 98. Heat index values as high as 110. Southwest wind 6 to 11 mph.

Monday Night

Partly cloudy, with a low around 79. Southwest wind around 8 mph.

Tuesday

Mostly sunny and hot, with a high near 98. Southwest wind 6 to 8 mph.

Tuesday Night

Partly cloudy, with a low around 79.

Wednesday

A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 95.

Wednesday Night

A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 76.

Thursday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Chance of precipitation is 60%.

Thursday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.

Friday

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.

Friday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73.

Saturday

A 30 percent chance of showers. Partly sunny, with a high near 89.