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

80°F

27°C

Humidity	94%
Wind Speed	S 3 mph
Barometer	30.03 in (1015.8 mb)
Dewpoint	78°F (26°C)
Visibility	10.00 mi
Heat Index	86°F (30°C)
Last update	15 Aug 11:54 pm CDT

More Information:

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

Extended Forecast for

2 Miles WNW Byrnes Mill MO

Extreme Heat Warning August 16, 12:53am until August 16, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 16, 12:53am until August 16, 09:00pm
NOW until 9:00pm Sun
Extreme Heat Warning
Overnight
Low: 74 °F
Slight Chance
T-storms
Sunday
High: 93 °F
Chance
T-storms
Sunday Night
Low: 71 °F
Chance
T-storms
Monday
High: 85 °F
Mostly Sunny
Monday Night
Low: 65 °F
Partly Cloudy
Tuesday
High: 90 °F
Sunny
Tuesday Night
Low: 71 °F
Partly Cloudy
then Slight
Chance
T-storms
Wednesday
High: 89 °F
Slight Chance
Showers

Detailed Forecast

Overnight

A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 74. Light southwest wind.

Sunday

A chance of showers and thunderstorms before 11am, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 93. Heat index values as high as 109. West wind around 6 mph. Chance of precipitation is 30%.

Sunday Night

A 30 percent chance of showers and thunderstorms, mainly before 3am. Mostly cloudy, with a low around 71. North wind 3 to 6 mph.

Monday

Mostly sunny, with a high near 85. North wind 3 to 7 mph.

Monday Night

Partly cloudy, with a low around 65. Calm wind.

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 71.

Wednesday

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

Wednesday Night

A slight chance of showers and thunderstorms, then a chance of showers after 1am. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

Thursday

A 20 percent chance of showers before 1pm. Partly sunny, with a high near 82.

Thursday Night

A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.

Friday

Mostly sunny, with a high near 83.

Friday Night

Partly cloudy, with a low around 64.

Saturday

Mostly sunny, with a high near 84.