Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
A Few Clouds
38°F
3°C
| Humidity | 89% |
| Wind Speed | Calm |
| Barometer | 30.22 in (1023.5 mb) |
| Dewpoint | 35°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 19 Apr 5:53 am CDT |
Extended Forecast for
4 Miles WSW Smithton IL
Today

High: 67 °F
Sunny
Tonight

Low: 40 °F
Partly Cloudy
Monday

High: 67 °F
Sunny
Monday Night

Low: 48 °F
Mostly Clear
Tuesday

High: 78 °F
Mostly Sunny
Tuesday Night

Low: 55 °F
Mostly Clear
Wednesday

High: 78 °F
Sunny
Wednesday Night

Low: 58 °F
Mostly Clear
Thursday

High: 82 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 67. West wind 5 to 15 mph, with gusts as high as 28 mph.
Tonight
Partly cloudy, with a low around 40. Northwest wind around 6 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 67. Calm wind becoming southeast 5 to 7 mph in the morning.
Monday Night
Mostly clear, with a low around 48. South wind around 7 mph.
Tuesday
Mostly sunny, with a high near 78. Southwest wind 6 to 14 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Sunny, with a high near 82.
Thursday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 63.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 76. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 69.
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)
5:11 am CDT Apr 19, 2026
6am CDT Apr 19, 2026-6pm CDT Apr 25, 2026


