Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
47°F
8°C
| Humidity | 74% |
| Wind Speed | N 7 mph |
| Barometer | 30.57 in (1035.2 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 44°F (7°C) |
| Last update | 17 Oct 8:53 am CDT |
Extended Forecast for
Mascoutah IL
Frost Advisory October 18, 01:00am until October 18, 09:00am
Today

High: 60 °F
Sunny
Tonight

Low: 36 °F
Clear
Sunday

High: 67 °F
Areas Frost
then SunnySunday Night

Low: 37 °F
Clear
Monday

High: 72 °F
Sunny
Monday Night

Low: 40 °F
Mostly Clear
Tuesday

High: 75 °F
Sunny
Tuesday Night

Low: 43 °F
Mostly Clear
Wednesday

High: 78 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 60. North wind 3 to 7 mph.
Tonight
Clear, with a low around 36. Calm wind.
Sunday
Areas of frost before 8am. Otherwise, sunny, with a high near 67. Calm wind becoming south around 6 mph in the morning.
Sunday Night
Clear, with a low around 37. Light and variable wind.
Monday
Sunny, with a high near 72. Calm wind.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Clear, with a low around 46.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 83.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Mascoutah IL
38.52°N 89.81°W (Elev. 423 ft)
38.52°N 89.81°W (Elev. 423 ft)
9:06 am CDT Oct 17, 2026
9am CDT Oct 17, 2026-6pm CDT Oct 23, 2026



