Lala Impacting Hawaii; Flash Flooding Risks; Excessive Heat

Lala will continue to impact Hawaii through the weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Thunderstorms, heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians and the mid-Atlantic through today. Record heat continues for areas of the Mississippi Valley into the Southeast. 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.

Partly Cloudy

81°F

27°C

Humidity	79%
Wind Speed	SW 6 mph
Barometer	30.06 in (1016.3 mb)
Dewpoint	74°F (23°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	16 Aug 7:51 am CDT

More Information:

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

Extended Forecast for

2 Miles WSW Saint Louis MO

Extreme Heat Warning August 16, 08:50am until August 16, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 16, 08:50am until August 16, 09:00pm
NOW until 9:00pm Sun
Extreme Heat Warning
Today
High: 95 °F
Showers then
Partly Sunny
Tonight
Low: 73 °F
Chance
T-storms
Monday
High: 86 °F
Becoming
Sunny
Monday Night
Low: 69 °F
Mostly Clear
Tuesday
High: 91 °F
Sunny
Tuesday Night
Low: 73 °F
Partly Cloudy
then Chance
T-storms
Wednesday
High: 89 °F
Chance
Showers
Wednesday Night
Low: 70 °F
Chance
T-storms

Detailed Forecast

Today

Showers and possibly a thunderstorm before 10am, then a chance of showers and thunderstorms between 10am and noon. High near 95. Heat index values as high as 110. Calm wind becoming west 5 to 7 mph in the morning. Chance of precipitation is 90%.

Tonight

A 40 percent chance of showers and thunderstorms, mainly between 8pm and 1am. Mostly cloudy, with a low around 73. North wind 5 to 7 mph.

Monday

Partly sunny, then gradually becoming sunny, with a high near 86. North wind 6 to 8 mph.

Monday Night

Mostly clear, with a low around 69. North wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 91. Light and variable wind.

Tuesday Night

A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.

Wednesday

A 40 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 89.