Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Mostly Cloudy

36°F

2°C

Humidity 70%
Wind Speed N 14 mph
Barometer 30.17 in (1022.0 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 3 Feb 2:53 pm CST
Extended Forecast for

Valmeyer IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 37. North wind 7 to 9 mph.

    High: 37 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 21. North wind around 6 mph becoming calm  in the evening.

    Low: 21 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 32. Calm wind becoming north around 6 mph.

    High: 32 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 15. Calm wind.

    Low: 15 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 44. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 44 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 37. North wind 7 to 9 mph.
Tonight
Mostly cloudy, with a low around 21. North wind around 6 mph becoming calm in the evening.
Wednesday
Partly sunny, with a high near 32. Calm wind becoming north around 6 mph.
Wednesday Night
Mostly clear, with a low around 15. Calm wind.
Thursday
Mostly sunny, with a high near 44. Calm wind becoming southwest 5 to 7 mph in the morning.
Thursday Night
Mostly clear, with a low around 33.
Friday
Sunny, with a high near 52.
Friday Night
Mostly clear, with a low around 24.
Saturday
Sunny, with a high near 44.
Saturday Night
Partly cloudy, with a low around 31.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Partly cloudy, with a low around 26.
Monday
Mostly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
Valmeyer IL
 38.31°N 90.3°W (Elev. 397 ft)
2:11 pm CST Feb 3, 2026
2pm CST Feb 3, 2026-6pm CST Feb 9, 2026
 
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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