Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

64°F

18°C

Humidity 96%
Wind Speed Calm
Barometer 30.02 in (1016.1 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 20 Jun 4:53 am CDT
Extended Forecast for

3 Miles E Caseyville IL

Extreme Heat Watch June 21, 12:00pm until June 24, 09:00pm
Click here for hazard details and duration
Extreme Heat Watch
  • Today

    Today: Sunny, with a high near 91. South wind 5 to 11 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 76. South wind around 11 mph, with gusts as high as 20 mph.

    Low: 76 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 96. Heat index values as high as 107. South wind 10 to 15 mph, with gusts as high as 22 mph.

    High: 96 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 76. South wind 7 to 10 mph.

    Low: 76 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. South wind 7 to 10 mph.

    High: 96 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers before 1pm.  Sunny, with a high near 94.

    High: 94 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 91. South wind 5 to 11 mph.
Tonight
Mostly clear, with a low around 76. South wind around 11 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 96. Heat index values as high as 107. South wind 10 to 15 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 76. South wind 7 to 10 mph.
Sunday
Sunny, with a high near 96. South wind 7 to 10 mph.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers before 1pm. Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Wednesday Night
Partly cloudy, with a low around 75.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles E Caseyville IL
 38.63°N 89.98°W (Elev. 558 ft)
3:36 am CDT Jun 20, 2025
5am CDT Jun 20, 2025-6pm CDT Jun 26, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database