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

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Partly Cloudy

72°F

22°C

Humidity 61%
Wind Speed S 3 mph
Barometer 30.20 in (1022.6 mb)
Dewpoint 58°F (14°C)
Visibility 10.00 mi
Last update 15 Oct 9:53 am CDT
Extended Forecast for

4 Miles NNE Valmeyer IL

  • Today

    Today: Sunny, with a high near 85. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 85 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 57. East wind 3 to 5 mph.

    Low: 57 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 83. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 83 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 58. Southeast wind 6 to 8 mph.

    Low: 58 °F

    Increasing
    Clouds

  • Friday

    Friday: Partly sunny, with a high near 83. Southeast wind 5 to 10 mph.

    High: 83 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.

    Low: 63 °F

    Mostly Clear
    then Chance
    T-storms

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 76. Chance of precipitation is 80%.

    High: 76 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Showers
    Likely

  • Sunday

    Sunday: A 20 percent chance of showers before 1pm. Sunny, with a high near 68.

    High: 68 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 85. Calm wind becoming northeast around 6 mph in the afternoon.
Tonight
Clear, with a low around 57. East wind 3 to 5 mph.
Thursday
Sunny, with a high near 83. Light east wind becoming southeast 5 to 10 mph in the morning.
Thursday Night
Increasing clouds, with a low around 58. Southeast wind 6 to 8 mph.
Friday
Partly sunny, with a high near 83. Southeast wind 5 to 10 mph.
Friday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63.
Saturday
Showers and possibly a thunderstorm. High near 76. Chance of precipitation is 80%.
Saturday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Sunday
A 20 percent chance of showers before 1pm. Sunny, with a high near 68.
Sunday Night
Clear, with a low around 44.
Monday
Sunny, with a high near 76.
Monday Night
Mostly clear, with a low around 52.
Tuesday
A 20 percent chance of showers. Sunny, with a high near 76.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNE Valmeyer IL
 38.35°N 90.27°W (Elev. 397 ft)
Last Update:
8:31 am CDT Oct 15, 2025
Forecast Valid:
10am CDT Oct 15, 2025-6pm CDT Oct 21, 2025
 
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