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 12, 08:00 PM CDT

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Partly Cloudy

83°F

28°C

Humidity	72%
Wind Speed	S 6 mph
Barometer	29.89 in (1010.7 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	12 Aug 12:51 am CDT

More Information:

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

Extended Forecast for

2 Miles SE Wellston MO

Extreme Heat Warning August 12, 01:11am until August 12, 08:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 12, 01:11am until August 12, 08:00pm
NOW until 8:00pm Wed
Extreme Heat Warning
Overnight
Low: 81 °F
Partly Cloudy
Wednesday
High: 97 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 78 °F
Chance
T-storms
Thursday
High: 98 °F
Slight Chance
T-storms then
Mostly Sunny
Thursday Night
Low: 77 °F
Partly Cloudy
Friday
High: 96 °F
Mostly Sunny
Friday Night
Low: 76 °F
Partly Cloudy
Saturday
High: 99 °F
Hot

Detailed Forecast

Overnight

Partly cloudy, with a low around 81. Southwest wind around 6 mph.

Wednesday

A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 97. Heat index values as high as 110. West wind around 7 mph.

Wednesday Night

A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 78. South wind around 6 mph becoming east in the evening.

Thursday

A 20 percent chance of showers and thunderstorms before 9am. Mostly sunny and hot, with a high near 98. Heat index values as high as 109. South wind around 6 mph.

Thursday Night

Partly cloudy, with a low around 77. Southeast wind around 6 mph.

Friday

Mostly sunny, with a high near 96.

Friday Night

Partly cloudy, with a low around 76.

Saturday

Mostly sunny and hot, with a high near 99.

Saturday Night

Mostly clear, with a low around 78.

Sunday

Sunny and hot, with a high near 98.