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

35°F

2°C

Humidity 93%
Wind Speed Calm
Barometer 29.88 in (1012.0 mb)
Dewpoint 33°F (1°C)
Visibility 8.00 mi
Last update 10 Feb 6:53 am CST
Extended Forecast for

Lemay MO

  • Today

    Today: Sunny, with a high near 63. South wind 6 to 11 mph becoming north in the afternoon.

    High: 63 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 31. North wind 5 to 8 mph.

    Low: 31 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 50. North wind 3 to 5 mph.

    High: 50 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 31. Calm wind.

    Low: 31 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 49. Calm wind becoming southeast around 6 mph in the morning.

    High: 49 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 50 percent chance of rain, mainly after noon. Cloudy, with a high near 49.

    High: 49 °F

    Slight Chance
    Rain then
    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 63. South wind 6 to 11 mph becoming north in the afternoon.
Tonight
Partly cloudy, with a low around 31. North wind 5 to 8 mph.
Wednesday
Sunny, with a high near 50. North wind 3 to 5 mph.
Wednesday Night
Increasing clouds, with a low around 31. Calm wind.
Thursday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 49. Calm wind becoming southeast around 6 mph in the morning.
Thursday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 35.
Friday
Partly sunny, with a high near 51.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
A 50 percent chance of rain, mainly after noon. Cloudy, with a high near 49.
Saturday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Sunday
A 40 percent chance of rain. Mostly sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 35.
Washington's Birthday
Mostly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lemay MO
 38.53°N 90.29°W (Elev. 456 ft)
Last Update:
4:51 am CST Feb 10, 2026
Forecast Valid:
7am CST Feb 10, 2026-6pm CST Feb 16, 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