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.

Fair

30°F

-1°C

Humidity 72%
Wind Speed N 10 mph
Barometer 30.33 in (1027.4 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 7 Feb 4:53 am CST
Extended Forecast for

Lemay MO

  • Today

    Today: Sunny, with a high near 39. Northeast wind around 6 mph becoming southeast in the afternoon.

    High: 39 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Southeast wind 7 to 9 mph.

    Low: 27 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 49. Southeast wind 6 to 9 mph.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 31. East wind around 6 mph becoming calm in the evening.

    Low: 31 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 59. Light and variable wind.

    High: 59 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.

    Low: 39 °F

    Rain Likely

  • Wednesday

    Wednesday: A 30 percent chance of rain before noon. Partly sunny, with a high near 51.

    High: 51 °F

    Chance Rain
    then Partly
    Sunny

Detailed Forecast

Today
Sunny, with a high near 39. Northeast wind around 6 mph becoming southeast in the afternoon.
Tonight
Mostly cloudy, with a low around 27. Southeast wind 7 to 9 mph.
Sunday
Mostly sunny, with a high near 49. Southeast wind 6 to 9 mph.
Sunday Night
Mostly clear, with a low around 31. East wind around 6 mph becoming calm in the evening.
Monday
Sunny, with a high near 59. Light and variable wind.
Monday Night
Mostly clear, with a low around 44.
Tuesday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 69.
Tuesday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Wednesday
A 30 percent chance of rain before noon. Partly sunny, with a high near 51.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 33.
Thursday
A 30 percent chance of rain. Mostly cloudy, with a high near 48.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 34.
Friday
A 30 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:
5:06 am CST Feb 7, 2026
Forecast Valid:
5am CST Feb 7, 2026-6pm CST Feb 13, 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