Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
53°F
12°C
| Humidity | 66% |
| Wind Speed | SE 6 mph |
| Barometer | 30.51 in (1033.4 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 51°F (11°C) |
| Last update | 18 Oct 9:53 am CDT |
Extended Forecast for
4 Miles SSE Mascoutah IL
Today
High: 69 °F
Sunny
Tonight
Low: 39 °F
Clear
Monday
High: 72 °F
Sunny
Monday Night
Low: 40 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 42 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 45 °F
Mostly Clear
Thursday
High: 80 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 69. South wind 3 to 7 mph.
Tonight
Clear, with a low around 39. Calm wind.
Monday
Sunny, with a high near 72. Calm wind.
Monday Night
Mostly clear, with a low around 40. Calm wind.
Tuesday
Sunny, with a high near 75. Calm wind.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 45.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 46.
Friday
Sunny, with a high near 80.
Friday Night
Mostly clear, with a low around 47.
Saturday
Sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles SSE Mascoutah IL
38.45°N 89.79°W (Elev. 410 ft)
38.45°N 89.79°W (Elev. 410 ft)
8:56 am CDT Oct 18, 2026
10am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
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