Severe Weather and Heavy Rainfall from the Midwest to the Ohio Valley; Mid-Summer Heat Continues

Severe thunderstorm and heavy rainfall threats will persist from the Midwest to Lower Great Lakes through Monday, shifting into the Ohio Valley and Central Appalachians Monday evening into Tuesday. Mid-summer heat will continue across much of the CONUS this week, with record highs possible well into the 100s across the south-central High Plains. Read More >

Hazardous Weather Conditions

Extreme Heat Warning 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

85°F

29°C

Humidity	70%
Wind Speed	S 12 mph
Barometer	29.96 in (1012.8 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	93°F (34°C)
Last update	9 Aug 11:51 pm CDT

More Information:

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

Extended Forecast for

Brentwood MO

Extreme Heat Warning August 10, 12:17am until August 12, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 10, 12:17am until August 12, 08:00pm
NOW until 8:00pm Wed
Extreme Heat Warning
Overnight
Low: 77 °F
Mostly Clear
Monday
High: 97 °F
Slight Chance
T-storms then
Mostly Sunny
Monday Night
Low: 79 °F
Partly Cloudy
Tuesday
High: 99 °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
Thursday
High: 89 °F
Showers
Likely

Detailed Forecast

Overnight

Mostly clear, with a low around 77. South wind around 8 mph.

Monday

A 20 percent chance of showers and thunderstorms before 8am. Mostly sunny and hot, with a high near 97. Heat index values as high as 109. Southwest wind 6 to 8 mph.

Monday Night

Partly cloudy, with a low around 79. South wind 5 to 7 mph.

Tuesday

Sunny and hot, with a high near 99. Heat index values as high as 110. Southwest wind 6 to 8 mph.

Tuesday Night

Partly cloudy, with a low around 79. Southwest wind 5 to 7 mph.

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 before 1pm. 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.

Saturday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.

Sunday

A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.