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 15, 09:00 PM CDT

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

89°F

32°C

Humidity	63%
Wind Speed	SE 7 mph
Barometer	30.05 in (1017.1 mb)
Dewpoint	75°F (24°C)
Visibility	10.00 mi
Heat Index	99°F (37°C)
Last update	14 Aug 11:53 am CDT

More Information:

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

Extended Forecast for

Lemay MO

Extreme Heat Warning August 14, 12:54pm until August 15, 09:00pm

Click here for hazard details and duration

Extreme Heat Warning

Extreme Heat Warning August 14, 12:54pm until August 15, 09:00pm
NOW until 9:00pm Sat
Extreme Heat Warning
This Afternoon
High: 98 °F
Slight Chance
T-storms
Tonight
Low: 77 °F
Mostly Clear
Saturday
High: 100 °F
Hot
Saturday Night
Low: 77 °F
Mostly Clear
Sunday
High: 98 °F
Hot
Sunday Night
Low: 73 °F
Chance
T-storms
Monday
High: 88 °F
Slight Chance
Showers then
Slight Chance
T-storms
Monday Night
Low: 69 °F
Partly Cloudy

Detailed Forecast

This Afternoon

A 20 percent chance of showers and thunderstorms before 2pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 106. Light south wind.

Tonight

Mostly clear, with a low around 77. Southeast wind 3 to 5 mph.

Saturday

Mostly sunny and hot, with a high near 100. Heat index values as high as 106. Southwest wind 3 to 5 mph.

Saturday Night

Mostly clear, with a low around 77. Calm wind becoming southwest around 5 mph after midnight.

Sunday

Mostly sunny and hot, with a high near 98. West wind around 6 mph.

Sunday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 50%.

Monday

A slight chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 88. Chance of precipitation is 20%.