Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

78°F

26°C

Humidity	85%
Wind Speed	Calm
Barometer	30.15 in (1020.4 mb)
Dewpoint	73°F (23°C)
Visibility	10.00 mi
Heat Index	80°F (27°C)
Last update	17 Sep 10:53 pm CDT

More Information:

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

Extended Forecast for

Shrewsbury MO

Heat Advisory September 17, 10:59pm until September 19, 08:00pm

Click here for hazard details and duration

Heat Advisory

Heat Advisory September 17, 10:59pm until September 19, 08:00pm
NOW until 8:00pm Sat
Heat Advisory
Tonight
Low: 75 °F
Mostly Clear
Friday
High: 97 °F
Hot
Friday Night
Low: 75 °F
Gradual
Clearing
Saturday
High: 97 °F
Hot
Saturday Night
Low: 74 °F
Partly Cloudy
Sunday
High: 94 °F
Slight Chance
Showers then
Slight Chance
T-storms
Sunday Night
Low: 71 °F
Mostly Cloudy
then Chance
T-storms
Monday
High: 84 °F
Showers
Likely

Detailed Forecast

Tonight

Mostly clear, with a low around 75. Calm wind.

Friday

Sunny and hot, with a high near 97. Heat index values as high as 107. Light and variable wind.

Friday Night

Mostly cloudy during the early evening, then gradual clearing, with a low around 75. Light and variable wind becoming southeast around 6 mph in the evening.

Saturday

Increasing clouds and hot, with a high near 97. Heat index values as high as 102. South wind 5 to 7 mph becoming west in the afternoon.

Saturday Night

Partly cloudy, with a low around 74. Light south wind.

Sunday

A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 94. Chance of precipitation is 20%.

Sunday Night

A 40 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71.

Monday

Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 84. Chance of precipitation is 60%.

Monday Night

A 30 percent chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 64.