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.

Fog/Mist

38°F

3°C

Humidity 100%
Wind Speed Calm
Barometer 30.30 in (1026.1 mb)
Dewpoint 38°F (3°C)
Visibility 5.00 mi
Last update 3 Nov 11:53 pm CST
Extended Forecast for

4 Miles NNE Valmeyer IL

  • Overnight

    Overnight: Partly cloudy, with a low around 39. Light southeast wind.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 72. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 23 mph.

    High: 72 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 52. Southwest wind 8 to 10 mph, with gusts as high as 21 mph.

    Low: 52 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 72. Southwest wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 21 mph.

    High: 72 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 40. North wind around 5 mph becoming calm in the evening.

    Low: 40 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 55.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: A 30 percent chance of rain before noon. Mostly sunny, with a high near 70.

    High: 70 °F

    Chance Rain
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 39. Light southeast wind.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 72. Light southeast wind becoming south 8 to 13 mph in the morning. Winds could gust as high as 23 mph.
Tuesday Night
Partly cloudy, with a low around 52. Southwest wind 8 to 10 mph, with gusts as high as 21 mph.
Wednesday
Sunny, with a high near 72. Southwest wind 6 to 11 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Clear, with a low around 40. North wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 66.
Thursday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 55.
Friday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 41.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Sunny, with a high near 50.
Sunday Night
Mostly clear, with a low around 28.
Monday
Sunny, with a high near 48.
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:
1:15 am CST Nov 4, 2025
Forecast Valid:
1am CST Nov 4, 2025-6pm CST Nov 10, 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