Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
44°F
7°C
| Humidity | 83% |
| Wind Speed | N 5 mph |
| Barometer | 30.55 in (1034.7 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 41°F (5°C) |
| Last update | 17 Oct 7:53 am CDT |
Extended Forecast for
Valmeyer IL
Frost Advisory October 18, 01:00am until October 18, 09:00am
Today
High: 60 °F
Sunny
Tonight
Low: 36 °F
Clear
Sunday
High: 67 °F
Patchy Frost
then SunnySunday Night
Low: 38 °F
Clear
Monday
High: 72 °F
Sunny
Monday Night
Low: 41 °F
Mostly Clear
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 43 °F
Mostly Clear
Wednesday
High: 78 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 60. Calm wind becoming northeast around 5 mph.
Tonight
Clear, with a low around 36. Calm wind.
Sunday
Patchy frost before 8am. Otherwise, sunny, with a high near 67. Calm wind becoming south around 5 mph in the afternoon.
Sunday Night
Clear, with a low around 38. Light and variable wind.
Monday
Sunny, with a high near 72. Light and variable wind.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Clear, with a low around 46.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 83.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Valmeyer IL
38.31°N 90.3°W (Elev. 397 ft)
38.31°N 90.3°W (Elev. 397 ft)
8:26 am CDT Oct 17, 2026
8am CDT Oct 17, 2026-6pm CDT Oct 23, 2026
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