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Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Overcast
26°F
-3°C
| Humidity | 71% |
| Wind Speed | N 8 mph |
| Barometer | 30.34 in (1028.0 mb) |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 18°F (-8°C) |
| Last update | 4 Feb 4:53 am CST |
Extended Forecast for
Mascoutah IL
Today
High: 31 °F
Mostly Cloudy
Tonight
Low: 15 °F
Partly Cloudy
Thursday
High: 38 °F
Partly Sunny
Thursday Night
Low: 30 °F
Partly Cloudy
Friday
High: 49 °F
Mostly Sunny
Friday Night
Low: 25 °F
Partly Cloudy
Saturday
High: 41 °F
Sunny
Saturday Night
Low: 29 °F
Partly Cloudy
Sunday
High: 51 °F
Mostly Sunny
Detailed Forecast
Today
Mostly cloudy, with a high near 31. North wind 6 to 10 mph.
Tonight
Partly cloudy, with a low around 15. North wind 5 to 7 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 38. Calm wind becoming south 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 30. South wind around 7 mph becoming west after midnight.
Friday
Mostly sunny, with a high near 49. West wind 8 to 15 mph becoming northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 25.
Saturday
Sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 29.
Monday
Mostly sunny, with a high near 50.
Monday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 37.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 59.
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)
2:27 am CST Feb 4, 2026
5am CST Feb 4, 2026-6pm CST Feb 10, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
