Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Hazardous Weather Conditions

Extreme Heat Warning until August 16, 09:00 PM CDT

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

88°F

31°C

Humidity	68%
Wind Speed	Vrbl 5 mph
Barometer	30.07 in (1017.8 mb)
Dewpoint	76°F (24°C)
Visibility	10.00 mi
Heat Index	99°F (37°C)
Last update	15 Aug 1:53 pm CDT

More Information:

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

Extended Forecast for

Pevely MO

Extreme Heat Warning August 15, 02:27pm until August 16, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 15, 02:27pm until August 16, 09:00pm
NOW until 9:00pm Sun
Extreme Heat Warning
This Afternoon
High: 98 °F
Hot
Tonight
Low: 74 °F
Partly Cloudy
Sunday
High: 98 °F
Hot
Sunday Night
Low: 71 °F
Chance
T-storms
Monday
High: 87 °F
Mostly Sunny
Monday Night
Low: 66 °F
Mostly Clear
Tuesday
High: 91 °F
Sunny
Tuesday Night
Low: 71 °F
Mostly Clear
then Slight
Chance
T-storms

Detailed Forecast

This Afternoon

Mostly sunny and hot, with a high near 98. Heat index values as high as 111. Southwest wind around 5 mph.

Tonight

Partly cloudy, with a low around 74. Calm wind becoming southwest around 5 mph after midnight.

Sunday

Mostly sunny and hot, with a high near 98. Heat index values as high as 111. Light and variable wind becoming northwest around 6 mph in the morning.

Sunday Night

A 40 percent chance of showers and thunderstorms, mainly between 2am and 5am. Partly cloudy, with a low around 71. Northwest wind around 5 mph becoming calm in the evening.

Monday

Mostly sunny, with a high near 87. North wind 3 to 5 mph.

Monday Night

Mostly clear, with a low around 66.

Tuesday

Sunny, with a high near 91.

Tuesday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.

Wednesday

A 30 percent chance of showers before 1pm. Partly sunny, with a high near 92.

Wednesday Night

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