Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
89°F
32°C
| Humidity | 34% |
| Wind Speed | Vrbl 7 mph |
| Barometer | 29.87 in (1011.2 mb) |
| Dewpoint | 57°F (14°C) |
| Visibility | 10.00 mi |
| Heat Index | 88°F (31°C) |
| Last update | 7 Oct 4:53 pm CDT |
Extended Forecast for
Mascoutah IL
Tonight
Low: 57 °F
Mostly Clear
Thursday
High: 84 °F
Sunny
Thursday Night
Low: 57 °F
Clear
Friday
High: 88 °F
Sunny
Friday Night
Low: 61 °F
Mostly Clear
Saturday
High: 86 °F
Mostly Sunny
Saturday Night
Low: 58 °F
Chance Rain
Sunday
High: 78 °F
Partly Sunny
Sunday Night
Low: 58 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 57. West wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 84. Calm wind.
Thursday Night
Clear, with a low around 57. Calm wind.
Friday
Sunny, with a high near 88. Calm wind becoming south 5 to 8 mph in the morning.
Friday Night
Mostly clear, with a low around 61. South wind 3 to 6 mph.
Saturday
Mostly sunny, with a high near 86.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 78.
Sunday Night
Partly cloudy, with a low around 58.
Columbus Day
Mostly sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Mostly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
A 20 percent chance of showers. Sunny, with a high near 73.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Mascoutah IL
38.5°N 89.81°W (Elev. 427 ft)
38.5°N 89.81°W (Elev. 427 ft)
3:46 pm CDT Oct 7, 2026
5pm CDT Oct 7, 2026-6pm CDT Oct 14, 2026
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