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.

A Few Clouds

28°F

-2°C

Humidity 75%
Wind Speed N 15 mph
Barometer 30.31 in (1026.8 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 4 Dec 1:53 am CST
Extended Forecast for

Lemay MO

  • Overnight

    Overnight: A chance of flurries before 3am. Cloudy, with a low around 16. North wind 5 to 8 mph.

    Low: 16 °F

    Chance
    Flurries

  • Thursday

    Thursday: Partly sunny, with a high near 24. North wind 5 to 8 mph.

    High: 24 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 13. Northeast wind around 5 mph becoming calm in the evening.

    Low: 13 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 41. Calm wind becoming south around 5 mph in the afternoon.

    High: 41 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 27. South wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after midnight. Cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A slight chance of rain and snow before noon. Mostly cloudy, with a high near 34. Chance of precipitation is 20%.

    High: 34 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A chance of flurries before 3am. Cloudy, with a low around 16. North wind 5 to 8 mph.
Thursday
Partly sunny, with a high near 24. North wind 5 to 8 mph.
Thursday Night
Partly cloudy, with a low around 13. Northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 41. Calm wind becoming south around 5 mph in the afternoon.
Friday Night
Mostly cloudy, with a low around 27. South wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 38.
Saturday Night
A 30 percent chance of snow after midnight. Cloudy, with a low around 28.
Sunday
A slight chance of rain and snow before noon. Mostly cloudy, with a high near 34. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 19.
Monday
Mostly sunny, with a high near 33.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 45.
Tuesday Night
Mostly cloudy, with a low around 33.
Wednesday
A 20 percent chance of rain. Mostly cloudy, with a high near 48.
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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:
2:46 am CST Dec 4, 2025
Forecast Valid:
2am CST Dec 4, 2025-6pm CST Dec 10, 2025
 
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