Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
50°F
10°C
| Humidity | 96% |
| Wind Speed | Calm |
| Barometer | 30.21 in (1022.9 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 4 Oct 7:53 am CDT |
Extended Forecast for
Cahokia / St. Louis, St. Louis Downtown Airport IL
Today
High: 81 °F
Sunny
Tonight
Low: 53 °F
Mostly Clear
Monday
High: 76 °F
Sunny
Monday Night
Low: 49 °F
Clear
Tuesday
High: 80 °F
Sunny
Tuesday Night
Low: 58 °F
Clear
Wednesday
High: 85 °F
Sunny
Wednesday Night
Low: 57 °F
Clear
Thursday
High: 84 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 81. Calm wind becoming north 5 to 8 mph in the afternoon.
Tonight
Mostly clear, with a low around 53. North wind around 6 mph.
Monday
Sunny, with a high near 76. Northeast wind 3 to 6 mph.
Monday Night
Clear, with a low around 49. Light east wind.
Tuesday
Sunny, with a high near 80. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 58.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Clear, with a low around 57.
Thursday
Sunny, with a high near 84.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 86.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 87.
Additional Forecasts and Information
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Point Forecast:
Cahokia / St. Louis, St. Louis Downtown Airport IL
38.6°N 90.15°W (Elev. 407 ft)
38.6°N 90.15°W (Elev. 407 ft)
8:21 am CDT Oct 4, 2026
8am CDT Oct 4, 2026-6pm CDT Oct 10, 2026
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