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

21°F

-6°C

Humidity 43%
Wind Speed N 18 mph
Barometer 30.48 in (1032.5 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill6°F (-14°C)
Last update 23 Jan 3:53 am CST
Extended Forecast for

Lemay MO

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: Cloudy, then gradually becoming mostly sunny and cold, with a temperature falling to around 10 by 10am. North wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 18 °F⇓

    Cold

  • Tonight

    Tonight: Increasing clouds, with a low around 4. Wind chill values as low as -10. Northeast wind 9 to 11 mph.

    Low: 4 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Snow. High near 12. Northeast wind around 8 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 12 °F

    Snow Likely
    then Snow

  • Saturday Night

    Saturday Night: Snow. Low around 10. Northeast wind 6 to 8 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 10 °F

    Snow

  • Sunday

    Sunday: Snow, mainly before noon. High near 16. North wind 8 to 10 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. Partly cloudy, with a low around 0.

    Low: 0 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Monday

    Monday: Sunny and cold, with a high near 18.

    High: 18 °F

    Cold

  • Monday Night

    Monday Night: Clear, with a low around 7.

    Low: 7 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny and cold, with a temperature falling to around 10 by 10am. North wind 13 to 15 mph, with gusts as high as 25 mph.
Tonight
Increasing clouds, with a low around 4. Wind chill values as low as -10. Northeast wind 9 to 11 mph.
Saturday
Snow. High near 12. Northeast wind around 8 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
Snow. Low around 10. 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. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around 0.
Monday
Sunny and cold, with a high near 18.
Monday Night
Clear, with a low around 7.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 10.
Wednesday
Partly sunny, with a high near 25.
Wednesday Night
Partly cloudy, with a low around 4.
Thursday
Mostly sunny and cold, with a high near 20.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lemay MO
 38.53°N 90.29°W (Elev. 456 ft)
Last Update:
3:16 am CST Jan 23, 2026
Forecast Valid:
4am 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