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, Spirit Of St. Louis Airport (KSUS)

Lat: 38.66°NLon: 90.66°WElev: 463ft.

Fair

81°F

27°C

Humidity	88%
Wind Speed	Calm
Barometer	29.99 in (1014.7 mb)
Dewpoint	77°F (25°C)
Visibility	10.00 mi
Heat Index	88°F (31°C)
Last update	15 Aug 8:54 pm CDT

More Information:

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

Extended Forecast for

Ellisville MO

Extreme Heat Warning August 15, 09:14pm until August 16, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 15, 09:14pm until August 16, 09:00pm
NOW until 9:00pm Sun
Extreme Heat Warning
Tonight
Low: 76 °F
Increasing
Clouds
Sunday
High: 95 °F
Mostly Cloudy
then Slight
Chance
T-storms
Sunday Night
Low: 71 °F
Slight Chance
T-storms then
Chance
Showers
Monday
High: 85 °F
Mostly Sunny
Monday Night
Low: 67 °F
Partly Cloudy
Tuesday
High: 89 °F
Sunny
Tuesday Night
Low: 72 °F
Partly Cloudy
then Slight
Chance
T-storms
Wednesday
High: 89 °F
Slight Chance
Showers

Detailed Forecast

Tonight

Increasing clouds, with a low around 76. South wind 3 to 5 mph.

Sunday

A 20 percent chance of showers and thunderstorms after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 95. Heat index values as high as 109. West wind 3 to 7 mph.

Sunday Night

A slight chance of showers and thunderstorms, then a chance of showers after 3am. Increasing clouds, with a low around 71. North wind 6 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.

Monday

Mostly sunny, with a high near 85. North wind around 6 mph.

Monday Night

Partly cloudy, with a low around 67. Light and variable wind.

Tuesday

Sunny, with a high near 89.

Tuesday Night

A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.

Wednesday

A 20 percent chance of showers before 1pm. Partly sunny, with a high near 89.

Wednesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 20%.