Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
81°F
27°C
| Humidity | 32% |
| Wind Speed | SE 5 mph |
| Barometer | 30.11 in (1019.5 mb) |
| Dewpoint | 48°F (9°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 8 Oct 11:53 am CDT |
Extended Forecast for
3 Miles SSE Mascoutah IL
This Afternoon
High: 86 °F
Sunny
Tonight
Low: 50 °F
Clear
Friday
High: 89 °F
Sunny
Friday Night
Low: 59 °F
Mostly Clear
Saturday
High: 84 °F
Partly Sunny
Saturday Night
Low: 59 °F
Showers
LikelySunday
High: 77 °F
Chance
ShowersSunday Night
Low: 58 °F
Mostly Clear
Columbus Day
High: 89 °F
Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 86. Calm wind.
Tonight
Clear, with a low around 50. Calm wind.
Friday
Sunny, with a high near 89. Calm wind becoming south 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around 59. Southeast wind 3 to 6 mph.
Saturday
Partly sunny, with a high near 84. Light south wind increasing to 5 to 10 mph in the morning.
Saturday Night
Showers likely, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.
Sunday
A 30 percent chance of showers before 1pm. Partly sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 58.
Columbus Day
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 62.
Tuesday
A 20 percent chance of showers. Sunny, with a high near 79.
Tuesday Night
A 20 percent chance of showers. Mostly clear, with a low around 53.
Wednesday
Sunny, with a high near 76.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SSE Mascoutah IL
38.47°N 89.78°W (Elev. 420 ft)
38.47°N 89.78°W (Elev. 420 ft)
10:36 am CDT Oct 8, 2026
12pm CDT Oct 8, 2026-6pm CDT Oct 14, 2026
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