Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
48°F
9°C
| Humidity | 100% |
| Wind Speed | Calm |
| Barometer | 30.24 in (1023.7 mb) |
| Dewpoint | 48°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 5 Oct 3:53 am CDT |
Extended Forecast for
4 Miles WSW Mascoutah IL
Today
High: 78 °F
Sunny
Tonight
Low: 49 °F
Clear
Tuesday
High: 80 °F
Sunny
Tuesday Night
Low: 55 °F
Clear
Wednesday
High: 86 °F
Sunny
Wednesday Night
Low: 57 °F
Clear
Thursday
High: 83 °F
Sunny
Thursday Night
Low: 56 °F
Mostly Clear
Friday
High: 84 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 78. Northeast wind 3 to 6 mph.
Tonight
Clear, with a low around 49. Light northeast wind.
Tuesday
Sunny, with a high near 80. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Clear, with a low around 55. Light south wind.
Wednesday
Sunny, with a high near 86. Calm wind becoming west 5 to 7 mph in the morning.
Wednesday Night
Clear, with a low around 57.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 56.
Friday
Sunny, with a high near 84.
Friday Night
Mostly clear, with a low around 57.
Saturday
Sunny, with a high near 85.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Mostly sunny, with a high near 85.
Additional Forecasts and Information
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Point Forecast:
4 Miles WSW Mascoutah IL
38.5°N 89.87°W (Elev. 449 ft)
38.5°N 89.87°W (Elev. 449 ft)
2:31 am CDT Oct 5, 2026
4am CDT Oct 5, 2026-6pm CDT Oct 11, 2026
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