Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

42°F

6°C

Humidity 36%
Wind Speed S 9 G 18 mph
Barometer 29.93 in (1014.1 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill37°F (3°C)
Last update 5 Dec 1:53 pm CST
Extended Forecast for

2 Miles ENE Valmeyer IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 43. Calm wind becoming south 5 to 7 mph.

    High: 43 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 30. South wind 5 to 7 mph becoming west after midnight.

    Low: 30 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, with a high near 42. West wind around 5 mph becoming calm.

    High: 42 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after midnight.  Mostly cloudy, with a low around 33. Southeast wind around 6 mph.

    Low: 33 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A 20 percent chance of rain before noon.  Mostly cloudy, with a high near 41. Southeast wind 6 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 41 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 43. Calm wind becoming south 5 to 7 mph.
Tonight
Increasing clouds, with a low around 30. South wind 5 to 7 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 42. West wind around 5 mph becoming calm.
Saturday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 33. Southeast wind around 6 mph.
Sunday
A 20 percent chance of rain before noon. Mostly cloudy, with a high near 41. Southeast wind 6 to 10 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 17.
Monday
Mostly sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 48.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly cloudy, with a high near 35.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ENE Valmeyer IL
 38.31°N 90.27°W (Elev. 699 ft)
1:56 pm CST Dec 5, 2025
2pm CST Dec 5, 2025-6pm CST Dec 11, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database