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.

A Few Clouds

82°F

28°C

Humidity	79%
Wind Speed	W 5 mph
Barometer	30.02 in (1016.2 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	89°F (32°C)
Last update	16 Aug 12:53 am CDT

More Information:

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

Extended Forecast for

Barnhart MO

Extreme Heat Warning August 16, 01:12am until August 16, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 16, 01:12am until August 16, 09:00pm
NOW until 9:00pm Sun
Extreme Heat Warning
Overnight
Low: 75 °F
Mostly Cloudy
Sunday
High: 96 °F
Slight Chance
T-storms then
Mostly Sunny
Sunday Night
Low: 72 °F
Chance
T-storms
Monday
High: 86 °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
Wednesday
High: 92 °F
Chance
Showers

Detailed Forecast

Overnight

Mostly cloudy, with a low around 75. Light southwest wind.

Sunday

A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 96. Heat index values as high as 113. West wind around 6 mph. Chance of precipitation is 20%.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly before 4am. Mostly cloudy, with a low around 72. North wind 3 to 6 mph.

Monday

Mostly sunny, with a high near 86. North wind 5 to 7 mph.

Monday Night

Mostly clear, with a low around 66. Calm wind.

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.