Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
39°F
4°C
| Humidity | 73% |
| Wind Speed | Calm |
| Barometer | 30.09 in (1019.1 mb) |
| Dewpoint | 31°F (-1°C) |
| Visibility | 10.00 mi |
| Last update | 14 Mar 1:53 am CDT |
Extended Forecast for
Valmeyer IL
Overnight
Low: 36 °F
Partly Cloudy
Saturday
High: 65 °F
Mostly Sunny
Saturday Night
Low: 55 °F
Partly Cloudy
Sunday
High: 67 °F
Slight Chance
Rain then
RainSunday Night
Low: 21 °F
Rain/Snow and
BreezyMonday
High: 29 °F
Slight Chance
Snow and
BlusteryMonday Night
Low: 13 °F
Mostly Clear
Tuesday
High: 39 °F
Sunny
Tuesday Night
Low: 30 °F
Slight Chance
Snow then
Slight Chance
Rain/Snow
Detailed Forecast
Overnight
Partly cloudy, with a low around 36. Light northeast wind.
Saturday
Mostly sunny, with a high near 65. Southeast wind 5 to 11 mph, with gusts as high as 20 mph.
Saturday Night
Partly cloudy, with a low around 55. South wind 8 to 14 mph, with gusts as high as 25 mph.
Sunday
Rain, with thunderstorms also possible after 4pm. High near 67. South wind around 18 mph, with gusts as high as 37 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 21. Breezy, with a southwest wind 20 to 23 mph becoming northwest after midnight. Winds could gust as high as 39 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday
A 20 percent chance of snow before 1pm. Mostly cloudy, with a high near 29. Blustery.
Monday Night
Mostly clear, with a low around 13.
Tuesday
Sunny, with a high near 39.
Tuesday Night
A slight chance of snow before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 73.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Sunny, with a high near 72.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Valmeyer IL
38.29°N 90.3°W (Elev. 515 ft)
38.29°N 90.3°W (Elev. 515 ft)
1:26 am CDT Mar 14, 2026
2am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
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