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 Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

79°F

26°C

Humidity	65%
Wind Speed	Vrbl 3 mph
Barometer	29.97 in (1014.2 mb)
Dewpoint	66°F (19°C)
Visibility	10.00 mi
Heat Index	81°F (27°C)
Last update	19 Sep 7:53 am CDT

More Information:

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

Extended Forecast for

Lakeshire MO

Heat Advisory September 19, 08:04am until September 19, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory September 19, 08:04am until September 19, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
Today
High: 99 °F
Hot
Tonight
Low: 74 °F
Partly Cloudy
Sunday
High: 94 °F
Chance
Showers then
Slight Chance
T-storms
Sunday Night
Low: 68 °F
Chance
Showers then
Showers
Likely
Monday
High: 79 °F
Showers
Likely
Monday Night
Low: 60 °F
Slight Chance
Showers
Tuesday
High: 72 °F
Partly Sunny
Tuesday Night
Low: 55 °F
Mostly Cloudy

Detailed Forecast

Today

Partly sunny and hot, with a high near 99. Heat index values as high as 103. Southwest wind 3 to 7 mph.

Tonight

Partly cloudy, with a low around 74. Calm wind becoming south around 5 mph after midnight.

Sunday

A chance of showers before noon, then a slight chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 94. West wind 3 to 5 mph. Chance of precipitation is 30%.

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 5 to 7 mph. Chance of precipitation is 70%.

Monday

Showers likely and possibly a thunderstorm before 10am, then showers likely between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 79. Northeast wind 5 to 8 mph. Chance of precipitation is 70%.

Monday Night

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

Tuesday

Partly sunny, with a high near 72.

Tuesday Night

Mostly cloudy, with a low around 55.

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.