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

63°F

17°C

Humidity 87%
Wind Speed S 5 mph
Barometer 30.15 in (1020.5 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 4 Oct 3:53 am CDT
Extended Forecast for

Lemay MO

  • Today

    Today: Sunny, with a high near 87. Light south wind increasing to 5 to 10 mph in the morning.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 60. South wind around 7 mph.

    Low: 60 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 87. South wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 87 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 64. South wind 3 to 6 mph.

    Low: 64 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 40%.

    High: 87 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.

    High: 78 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 74.

    High: 74 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 87. Light south wind increasing to 5 to 10 mph in the morning.
Tonight
Clear, with a low around 60. South wind around 7 mph.
Sunday
Sunny, with a high near 87. South wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Mostly clear, with a low around 64. South wind 3 to 6 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. Calm wind becoming south around 6 mph in the morning. Chance of precipitation is 40%.
Monday Night
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 51.
Friday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 77.
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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:
3:16 am CDT Oct 4, 2025
Forecast Valid:
4am CDT Oct 4, 2025-6pm CDT Oct 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