National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

42°F

6°C

Humidity 58%
Wind Speed W 6 mph
Barometer 30.33 in (1027.4 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 12 Mar 9:53 am CDT
Extended Forecast for

Valmeyer IL

  • Today

    Today: Sunny, with a high near 57. West wind 7 to 9 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 44. South wind 9 to 17 mph, with gusts as high as 36 mph.

    Low: 44 °F

    Increasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 63. West wind 13 to 16 mph, with gusts as high as 29 mph.

    High: 63 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 36. Northwest wind around 6 mph becoming light and variable in the evening.

    Low: 36 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 66. Southeast wind 6 to 9 mph.

    High: 66 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: A chance of rain and thunderstorms, then rain after 1pm. High near 68. Chance of precipitation is 80%.

    High: 68 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain likely, possibly mixed with snow before 1am, then a chance of snow. Mostly cloudy, with a low around 23. Breezy. Chance of precipitation is 60%.

    Low: 23 °F

    Rain/Snow
    Likely and
    Breezy

  • Monday

    Monday: Mostly sunny, with a high near 35. Breezy.

    High: 35 °F

    Partly Sunny
    and Breezy
    then Sunny

Detailed Forecast

Today
Sunny, with a high near 57. West wind 7 to 9 mph.
Tonight
Increasing clouds, with a low around 44. South wind 9 to 17 mph, with gusts as high as 36 mph.
Friday
Mostly sunny, with a high near 63. West wind 13 to 16 mph, with gusts as high as 29 mph.
Friday Night
Partly cloudy, with a low around 36. Northwest wind around 6 mph becoming light and variable in the evening.
Saturday
Partly sunny, with a high near 66. Southeast wind 6 to 9 mph.
Saturday Night
Mostly cloudy, with a low around 54.
Sunday
A chance of rain and thunderstorms, then rain after 1pm. High near 68. Chance of precipitation is 80%.
Sunday Night
Rain likely, possibly mixed with snow before 1am, then a chance of snow. Mostly cloudy, with a low around 23. Breezy. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 35. Breezy.
Monday Night
Mostly clear, with a low around 16.
Tuesday
Partly sunny, with a high near 42.
Tuesday Night
Mostly cloudy, with a low around 31.
Wednesday
Partly sunny, with a high near 60.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Valmeyer IL
 38.31°N 90.3°W (Elev. 397 ft)
Last Update:
5:56 am CDT Mar 12, 2026
Forecast Valid:
10am CDT Mar 12, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation