Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
31°F
-1°C
| Humidity | 40% |
| Wind Speed | NW 9 mph |
| Barometer | 30.48 in (1032.8 mb) |
| Dewpoint | 9°F (-13°C) |
| Visibility | 10.00 mi |
| Wind Chill | 23°F (-5°C) |
| Last update | 23 Feb 3:53 pm CST |
Extended Forecast for
4 Miles WSW Smithton IL
Tonight

Low: 20 °F
Mostly Clear
Tuesday

High: 53 °F
Partly Sunny
and BreezyTuesday Night

Low: 36 °F
Mostly Cloudy
Wednesday

High: 54 °F
Partly Sunny
Wednesday Night
Low: 37 °F
Slight Chance
Rain then
Chance RainThursday
High: 50 °F
Chance Rain
then Mostly
SunnyThursday Night

Low: 32 °F
Mostly Clear
Friday

High: 63 °F
Sunny
Friday Night

Low: 40 °F
Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 20. Calm wind becoming south 5 to 7 mph after midnight.
Tuesday
Partly sunny, with a high near 53. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the morning. Winds could gust as high as 37 mph.
Tuesday Night
Mostly cloudy, with a low around 36. South wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Wednesday
Partly sunny, with a high near 54. Calm wind becoming northeast around 6 mph in the afternoon.
Wednesday Night
A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 37. East wind around 7 mph.
Thursday
A 30 percent chance of rain before noon. Partly sunny, with a high near 50.
Thursday Night
Mostly clear, with a low around 32.
Friday
Sunny, with a high near 63.
Friday Night
Clear, with a low around 40.
Saturday
Sunny, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
A 30 percent chance of rain. Partly sunny, with a high near 49.
Sunday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 32.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 48.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles WSW Smithton IL
38.37°N 90.04°W (Elev. 499 ft)
38.37°N 90.04°W (Elev. 499 ft)
2:51 pm CST Feb 23, 2026
4pm CST Feb 23, 2026-6pm CST Mar 2, 2026


