Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
51°F
11°C
| Humidity | 86% |
| Wind Speed | Calm |
| Barometer | 29.95 in (1013.8 mb) |
| Dewpoint | 47°F (8°C) |
| Visibility | 10.00 mi |
| Last update | 7 Oct 5:53 am CDT |
Extended Forecast for
3 Miles WSW Mascoutah IL
Today
High: 89 °F
Sunny
Tonight
Low: 55 °F
Mostly Clear
Thursday
High: 84 °F
Sunny
Thursday Night
Low: 54 °F
Clear
Friday
High: 87 °F
Sunny
Friday Night
Low: 58 °F
Mostly Clear
Saturday
High: 86 °F
Sunny
Saturday Night
Low: 59 °F
Partly Cloudy
then Chance
ShowersSunday
High: 78 °F
Chance
Showers
Detailed Forecast
Today
Sunny, with a high near 89. Light southwest wind becoming west 5 to 10 mph in the morning.
Tonight
Mostly clear, with a low around 55. Light and variable wind.
Thursday
Sunny, with a high near 84. Light and variable wind.
Thursday Night
Clear, with a low around 54. Light and variable wind.
Friday
Sunny, with a high near 87. Calm wind becoming south 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 86.
Saturday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 59.
Sunday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 58.
Columbus Day
Mostly sunny, with a high near 83.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles WSW Mascoutah IL
38.48°N 89.84°W (Elev. 400 ft)
38.48°N 89.84°W (Elev. 400 ft)
4:46 am CDT Oct 7, 2026
6am CDT Oct 7, 2026-6pm CDT Oct 13, 2026
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