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 Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

A Few Clouds

85°F

29°C

Humidity	72%
Wind Speed	NW 3 mph
Barometer	30.04 in (1015.9 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	93°F (34°C)
Last update	15 Aug 11:51 pm CDT

More Information:

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

Extended Forecast for

Wellston MO

Extreme Heat Warning August 16, 12:08am until August 16, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 16, 12:08am until August 16, 09:00pm
NOW until 9:00pm Sun
Extreme Heat Warning
Overnight
Low: 77 °F
Slight Chance
T-storms
Sunday
High: 94 °F
Chance
T-storms
Sunday Night
Low: 73 °F
Chance
T-storms
Monday
High: 86 °F
Mostly Sunny
Monday Night
Low: 69 °F
Partly Cloudy
Tuesday
High: 90 °F
Sunny
Tuesday Night
Low: 73 °F
Partly Cloudy
then Slight
Chance
T-storms
Wednesday
High: 90 °F
Chance
Showers

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Light southwest wind.

Sunday

A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 94. Heat index values as high as 109. West wind 5 to 8 mph. Chance of precipitation is 30%.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 73. North wind 5 to 7 mph.

Monday

Mostly sunny, with a high near 86. North wind around 8 mph.

Monday Night

Partly cloudy, with a low around 69. North wind around 6 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 90.

Tuesday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.

Wednesday

A 30 percent chance of showers before 1pm. Partly sunny, with a high near 90.