Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Hazardous Weather Conditions

Heat Advisory until September 19, 08:00 PM CDT

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Fair

81°F

27°C

Humidity	65%
Wind Speed	SW 6 mph
Barometer	29.97 in (1013.2 mb)
Dewpoint	68°F (20°C)
Visibility	10.00 mi
Heat Index	84°F (29°C)
Last update	19 Sep 2:51 am CDT

More Information:

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

Extended Forecast for

2 Miles W Creve Coeur MO

Heat Advisory September 19, 03:11am until September 19, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory September 19, 03:11am until September 19, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
Overnight
Low: 75 °F
Mostly Clear
Saturday
High: 98 °F
Hot
Saturday Night
Low: 75 °F
Partly Cloudy
Sunday
High: 93 °F
Slight Chance
Showers
Sunday Night
Low: 68 °F
Chance
Showers then
Showers
Likely
Monday
High: 78 °F
Showers
Likely
Monday Night
Low: 60 °F
Slight Chance
Showers
Tuesday
High: 71 °F
Mostly Cloudy

Detailed Forecast

Overnight

Mostly clear, with a low around 75. South wind 3 to 5 mph.

Saturday

Partly sunny and hot, with a high near 98. Heat index values as high as 101. Southwest wind 5 to 8 mph.

Saturday Night

Partly cloudy, with a low around 75. Calm wind becoming southwest around 5 mph after midnight.

Sunday

A slight chance of showers before 10am, then a slight chance of showers after 5pm. Partly sunny, with a high near 93. West wind 3 to 5 mph. Chance of precipitation is 20%.

Sunday Night

A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 68. Northeast wind 6 to 8 mph. Chance of precipitation is 70%.

Monday

Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 78. Chance of precipitation is 70%.

Monday Night

A 20 percent chance of showers. Mostly cloudy, with a low around 60.

Tuesday

Mostly cloudy, with a high near 71.

Tuesday Night

Mostly cloudy, with a low around 56.

Wednesday

Mostly sunny, with a high near 74.

Wednesday Night

Partly cloudy, with a low around 57.

Thursday

Mostly sunny, with a high near 76.