


Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
A Few Clouds
82°F
28°C
Humidity | 60% |
Wind Speed | Calm |
Barometer | 30.19 in (1022.0 mb) |
Dewpoint | 67°F (19°C) |
Visibility | 10.00 mi |
Heat Index | 84°F (29°C) |
Last update | 5 Aug 12:53 pm CDT |
Extended Forecast for
Caseyville IL
This Afternoon
High: 86 °F
Slight Chance
T-stormsTonight
Low: 68 °F
Mostly Clear
Wednesday
High: 89 °F
Mostly Sunny
Wednesday Night
Low: 71 °F
Mostly Clear
Thursday
High: 92 °F
Sunny
Thursday Night
Low: 71 °F
Mostly Clear
Friday
High: 92 °F
Sunny
Friday Night
Low: 74 °F
Mostly Clear
Saturday
High: 92 °F
Sunny
Detailed Forecast
This Afternoon
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. Northeast wind 3 to 5 mph.
Tonight
Mostly clear, with a low around 68. East wind around 5 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 89. Light southeast wind.
Wednesday Night
Mostly clear, with a low around 71. Light southeast wind.
Thursday
Sunny, with a high near 92. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 71.
Friday
Sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 74.
Saturday
Sunny, with a high near 92.
Saturday Night
Mostly clear, with a low around 74.
Sunday
Sunny, with a high near 92.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Caseyville IL
38.64°N 90.03°W (Elev. 446 ft)
38.64°N 90.03°W (Elev. 446 ft)
1:41 pm CDT Aug 5, 2025
2pm CDT Aug 5, 2025-6pm CDT Aug 11, 2025