National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Thunderstorm in Vicinity

91°F

33°C

Humidity 61%
Wind Speed N 7 mph
Barometer 29.79 in (1008.1 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 27 Jul 6:53 pm CDT
Extended Forecast for

East Carondelet IL

Extreme Heat Warning July 27, 07:36pm until July 28, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 27, 07:36pm until July 28, 07:00pm

    NOW until 7:00pm Tue

    Extreme Heat Warning

  • Tonight

    Low: 81 °F

    Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Isolated showers and thunderstorms after noon. Increasing clouds, with a high near 92. Heat index values as high as 105. Northwest wind 5 to 8 mph becoming north in the afternoon. Chance of precipitation is 20%.

    High: 92 °F

    Mostly Sunny
    then Isolated
    T-storms

  • Tuesday Night

    Tuesday Night: Isolated showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. Northeast wind 3 to 8 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Isolated
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 89. Calm wind becoming northeast 5 to 7 mph in the afternoon.

    High: 89 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 68. Northeast wind around 6 mph becoming calm in the evening.

    Low: 68 °F

    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Partly cloudy, with a low around 71.

    Low: 71 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 50%.

    High: 87 °F

    Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Partly cloudy, with a low around 81. Southwest wind 3 to 5 mph. Chance of precipitation is 30%.
Tuesday
Isolated showers and thunderstorms after noon. Increasing clouds, with a high near 92. Heat index values as high as 105. Northwest wind 5 to 8 mph becoming north in the afternoon. Chance of precipitation is 20%.
Tuesday Night
Isolated showers and thunderstorms before 2am. Mostly cloudy, with a low around 70. Northeast wind 3 to 8 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 89. Calm wind becoming northeast 5 to 7 mph in the afternoon.
Wednesday Night
Clear, with a low around 68. Northeast wind around 6 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 71.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 87. Chance of precipitation is 50%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 70%.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 68.
Monday
Sunny, with a high near 86.
Basemap Options
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
East Carondelet IL
 38.53°N 90.24°W (Elev. 400 ft)
Last Update:
6:56 pm CDT Jul 27, 2026
Forecast Valid:
7pm CDT Jul 27, 2026-6pm CDT Aug 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation