Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
13°F
-11°C
| Humidity | 77% |
| Wind Speed | Calm |
| Barometer | 30.19 in (1022.9 mb) |
| Dewpoint | 7°F (-14°C) |
| Visibility | 10.00 mi |
| Last update | 5 Dec 12:53 am CST |
Extended Forecast for
Caseyville IL
Overnight
Low: 8 °F
Mostly Clear
Friday
High: 40 °F
Sunny
Friday Night
Low: 34 °F
Mostly Cloudy
Saturday
High: 39 °F
Partly Sunny
Saturday Night
Low: 30 °F
Mostly Cloudy
then Chance
RainSunday
High: 39 °F
Chance
Rain/Snow
then CloudySunday Night
Low: 15 °F
Mostly Cloudy
Monday
High: 32 °F
Mostly Sunny
Monday Night
Low: 24 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 8. Calm wind.
Friday
Sunny, with a high near 40. South wind 3 to 7 mph.
Friday Night
Mostly cloudy, with a steady temperature around 34. South wind around 7 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 39. West wind around 5 mph becoming light and variable.
Saturday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 30. East wind around 6 mph.
Sunday
A chance of rain, mixing with snow after 9am, then gradually ending. Mostly cloudy, with a high near 39. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 15.
Monday
Mostly sunny, with a high near 32.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 23.
Thursday
Mostly cloudy, with a high near 34.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Caseyville IL
38.64°N 90.03°W (Elev. 446 ft)
38.64°N 90.03°W (Elev. 446 ft)
12:26 am CST Dec 5, 2025
1am CST Dec 5, 2025-6pm CST Dec 11, 2025
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