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, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

86°F

30°C

Humidity	67%
Wind Speed	S 8 mph
Barometer	29.90 in (1011.6 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	94°F (34°C)
Last update	9 Aug 8:54 pm CDT

More Information:

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

Extended Forecast for

Cottleville MO

Extreme Heat Warning August 9, 09:05pm until August 12, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 9, 09:05pm until August 12, 08:00pm
NOW until 8:00pm Wed
Extreme Heat Warning
Tonight
Low: 76 °F
Mostly Clear
Monday
High: 95 °F
Mostly Sunny
Monday Night
Low: 78 °F
Partly Cloudy
Tuesday
High: 95 °F
Mostly Sunny
Tuesday Night
Low: 77 °F
Partly Cloudy
Wednesday
High: 93 °F
Chance
Showers
Wednesday Night
Low: 74 °F
Chance
T-storms
Thursday
High: 87 °F
Showers
Likely

Detailed Forecast

Tonight

Mostly clear, with a low around 76. South wind 5 to 8 mph.

Monday

Mostly sunny, with a high near 95. Heat index values as high as 107. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.

Monday Night

Partly cloudy, with a low around 78. Southwest wind around 7 mph.

Tuesday

Mostly sunny, with a high near 95. Heat index values as high as 107. Southwest wind around 8 mph.

Tuesday Night

Partly cloudy, with a low around 77. Calm wind becoming southwest 5 to 7 mph in the evening.

Wednesday

A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 93.

Wednesday Night

A 40 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 74.

Thursday

Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87. 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 71. Chance of precipitation is 60%.

Friday

A 30 percent chance of showers and thunderstorms before 1pm. Mostly cloudy, with a high near 85.

Friday Night

A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

Saturday

A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

Saturday Night

A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.

Sunday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.