Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
52°F
11°C
| Humidity | 66% |
| Wind Speed | SE 3 mph |
| Barometer | 30.35 in (1028.0 mb) |
| Dewpoint | 41°F (5°C) |
| Visibility | 10.00 mi |
| Last update | 18 Oct 6:53 pm CDT |
Extended Forecast for
2 Miles S Valmeyer IL
Tonight
Low: 39 °F
Clear then
Patchy FogMonday
High: 72 °F
Patchy Fog
then SunnyMonday Night
Low: 42 °F
Mostly Clear
Tuesday
High: 75 °F
Mostly Sunny
Tuesday Night
Low: 44 °F
Mostly Clear
Wednesday
High: 78 °F
Sunny
Wednesday Night
Low: 45 °F
Clear
Thursday
High: 78 °F
Sunny
Thursday Night
Low: 48 °F
Clear
Detailed Forecast
Tonight
Patchy fog after 4am. Otherwise, clear, with a low around 39. Southeast wind around 5 mph becoming calm in the evening.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 72. Light southeast wind.
Monday Night
Mostly clear, with a low around 42. Light and variable wind.
Tuesday
Mostly sunny, with a high near 75. Calm wind.
Tuesday Night
Mostly clear, with a low around 44. Calm wind.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Clear, with a low around 45.
Thursday
Sunny, with a high near 78.
Thursday Night
Clear, with a low around 48.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 47.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 50.
Sunday
Mostly sunny, with a high near 81.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles S Valmeyer IL
38.27°N 90.3°W (Elev. 390 ft)
38.27°N 90.3°W (Elev. 390 ft)
2:56 pm CDT Oct 18, 2026
7pm CDT Oct 18, 2026-6pm CDT Oct 25, 2026
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