Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Hazardous Weather Conditions

Air Quality Alert

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

79°F

26°C

Humidity	62%
Wind Speed	S 6 mph
Barometer	30.07 in (1017.6 mb)
Dewpoint	65°F (18°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	8 Sep 11:53 pm CDT

More Information:

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

Extended Forecast for

Pevely MO

Overnight
Low: 72 °F
Clear
Wednesday
High: 96 °F
Slight Chance
Showers then
Chance
T-storms
Wednesday Night
Low: 70 °F
T-storms
Likely then
T-storms
Thursday
High: 80 °F
Showers then
Showers
Likely
Thursday Night
Low: 63 °F
Mostly Cloudy
Friday
High: 86 °F
Partly Sunny
then Slight
Chance
Showers
Friday Night
Low: 65 °F
Mostly Clear
Saturday
High: 92 °F
Slight Chance
T-storms
Saturday Night
Low: 67 °F
Chance
T-storms

Detailed Forecast

Overnight

Clear, with a low around 72. South wind 3 to 5 mph.

Wednesday

A slight chance of showers between 8am and 1pm, then a chance of showers and thunderstorms after 1pm. Increasing clouds, with a high near 96. Heat index values as high as 105. South wind around 6 mph becoming northwest in the afternoon. Chance of precipitation is 40%.

Wednesday Night

Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 70. Light and variable wind. Chance of precipitation is 90%.

Thursday

Showers and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms, mainly between 1pm and 4pm. High near 80. Calm wind becoming northwest around 5 mph. Chance of precipitation is 90%.

Thursday Night

Mostly cloudy, with a low around 63. Calm wind.

Friday

A 20 percent chance of showers after 1pm. Mostly sunny, with a high near 86.

Friday Night

Mostly clear, with a low around 65.

Saturday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.

Saturday Night

A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 67.

Sunday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.