Severe Weather and Heavy Rainfall in the Ohio Valley; Heat Continuing in the South and Southeast

Severe thunderstorms with damaging wind gusts will be possible from the mid-Mississippi Valley into parts of the Ohio Valley and central Appalachians tonight. Heavy rain associated with these storms may lead to considerable flash and urban flooding impacts across portions of the Ohio Valley. Mid-summer heat persists from the Central Plains to the Southeast. Read More >

Hazardous Weather Conditions

Extreme Heat Warning until August 13, 08:00 PM CDT

Current conditions at

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

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

78°F

26°C

Humidity	82%
Wind Speed	W 3 mph
Barometer	29.85 in (1009.7 mb)
Dewpoint	72°F (22°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	12 Aug 2:54 am CDT

More Information:

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

Extended Forecast for

3 Miles E Allenton MO

Extreme Heat Warning August 12, 03:25am until August 13, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 12, 03:25am until August 13, 08:00pm
NOW until 8:00pm Thu
Extreme Heat Warning
Overnight
Low: 77 °F
Partly Cloudy
Wednesday
High: 94 °F
Mostly Sunny
Wednesday Night
Low: 76 °F
Partly Cloudy
then Heavy
Rain
Thursday
High: 96 °F
Mostly Sunny
Thursday Night
Low: 77 °F
Partly Cloudy
Friday
High: 96 °F
Mostly Sunny
Friday Night
Low: 76 °F
Mostly Clear
Saturday
High: 97 °F
Hot

Detailed Forecast

Overnight

Partly cloudy, with a low around 77. Southwest wind around 5 mph.

Wednesday

Mostly sunny, with a high near 94. Heat index values as high as 106. Southwest wind 3 to 5 mph.

Wednesday Night

A 30 percent chance of showers and thunderstorms, mainly after 5am. Some of the storms could produce heavy rainfall. Partly cloudy, with a low around 76. Calm wind becoming south around 5 mph after midnight.

Thursday

Mostly sunny, with a high near 96. Heat index values as high as 107. Southwest wind 3 to 5 mph.

Thursday Night

Partly cloudy, with a low around 77. Calm wind becoming south around 5 mph.

Friday

Mostly sunny, with a high near 96.

Friday Night

Mostly clear, with a low around 76.

Saturday

Sunny and hot, with a high near 97.

Saturday Night

Mostly clear, with a low around 76.