National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast and Breezy

27°F

-3°C

Humidity 55%
Wind Speed NW 24 G 32 mph
Barometer 30.09 in (1019.4 mb)
Dewpoint 13°F (-11°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 16 Mar 5:53 pm CDT
Extended Forecast for

Lemay MO

  • Tonight

    Tonight: Scattered flurries before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 16. Northwest wind 11 to 15 mph, with gusts as high as 25 mph.

    Low: 16 °F

    Scattered
    Flurries

  • Tuesday

    Tuesday: Increasing clouds, with a high near 36. Northwest wind 5 to 9 mph becoming south in the afternoon.

    High: 36 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of snow before 3am, then a slight chance of rain. Cloudy, with a low around 32. Southeast wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.

    Low: 32 °F

    Chance Snow
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly cloudy, then gradually becoming sunny, with a high near 65. South wind 7 to 9 mph becoming west in the afternoon.

    High: 65 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 45. Light south wind.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Tonight
Scattered flurries before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 16. Northwest wind 11 to 15 mph, with gusts as high as 25 mph.
Tuesday
Increasing clouds, with a high near 36. Northwest wind 5 to 9 mph becoming south in the afternoon.
Tuesday Night
A chance of snow before 3am, then a slight chance of rain. Cloudy, with a low around 32. Southeast wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, then gradually becoming sunny, with a high near 65. South wind 7 to 9 mph becoming west in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 45. Light south wind.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Mostly clear, with a low around 47.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 74.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 56.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lemay MO
 38.53°N 90.29°W (Elev. 456 ft)
Last Update:
5:31 pm CDT Mar 16, 2026
Forecast Valid:
6pm CDT Mar 16, 2026-6pm CDT Mar 23, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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