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

10°F

-12°C

Humidity 41%
Wind Speed N 14 G 24 mph
Barometer 30.63 in (1037.7 mb)
Dewpoint -9°F (-23°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 23 Jan 7:53 am CST
Extended Forecast for

Valmeyer IL

Cold Weather Advisory January 24, 12:00am until January 24, 12:00pm
Winter Storm Warning January 24, 12:00am until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning

  • Today

    Today: Mostly cloudy and cold, with a steady temperature around 12. North wind 13 to 16 mph, with gusts as high as 24 mph.

    High: 12 °F

    Cold

  • Tonight

    Tonight: Mostly cloudy, with a low around 4. Wind chill values as low as -10. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 4 °F

    Mostly Cloudy

  • Saturday

    Saturday: Snow. High near 12. Northeast wind around 9 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 12 °F

    Snow Likely
    then Snow

  • Saturday Night

    Saturday Night: Snow. Low around 9. Northeast wind 6 to 8 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 9 °F

    Snow

  • Sunday

    Sunday: Snow, mainly before noon. High near 16. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 16 °F

    Snow then
    Chance Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around -1.

    Low: -1 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny and cold, with a high near 19.

    High: 19 °F

    Cold

  • Monday Night

    Monday Night: Clear, with a low around 6.

    Low: 6 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 35.

    High: 35 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly cloudy and cold, with a steady temperature around 12. North wind 13 to 16 mph, with gusts as high as 24 mph.
Tonight
Mostly cloudy, with a low around 4. Wind chill values as low as -10. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.
Saturday
Snow. High near 12. Northeast wind around 9 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Snow. Low around 9. Northeast wind 6 to 8 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Sunday
Snow, mainly before noon. High near 16. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around -1.
Monday
Mostly sunny and cold, with a high near 19.
Monday Night
Clear, with a low around 6.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 9.
Wednesday
Partly sunny, with a high near 27.
Wednesday Night
Partly cloudy, with a low around 4.
Thursday
Mostly sunny, with a high near 21.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Valmeyer IL
 38.31°N 90.3°W (Elev. 397 ft)
Last Update:
3:16 am CST Jan 23, 2026
Forecast Valid:
8am CST Jan 23, 2026-6pm CST Jan 29, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation