Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
42°F
6°C
| Humidity | 85% |
| Wind Speed | N 6 mph |
| Barometer | 30.53 in (1034.0 mb) |
| Dewpoint | 38°F (3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 38°F (3°C) |
| Last update | 17 Oct 6:53 am CDT |
Extended Forecast for
Caseyville IL
Frost Advisory October 18, 01:00am until October 18, 09:00am
Today
High: 61 °F
Sunny
Tonight
Low: 37 °F
Clear
Sunday
High: 67 °F
Areas Frost
then SunnySunday Night
Low: 38 °F
Clear
Monday
High: 72 °F
Sunny
Monday Night
Low: 42 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 45 °F
Mostly Clear
Wednesday
High: 78 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 61. North wind around 6 mph becoming calm in the afternoon.
Tonight
Clear, with a low around 37. Calm wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 67. Calm wind becoming south 5 to 7 mph in the morning.
Sunday Night
Clear, with a low around 38. Light and variable wind.
Monday
Sunny, with a high near 72. Light and variable wind.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 52.
Friday
Sunny, with a high near 84.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Caseyville IL
38.64°N 90.06°W (Elev. 420 ft)
38.64°N 90.06°W (Elev. 420 ft)
6:26 am CDT Oct 17, 2026
7am CDT Oct 17, 2026-6pm CDT Oct 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
