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.

Fair

46°F

8°C

Humidity 51%
Wind Speed SE 5 mph
Barometer 30.29 in (1025.9 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 29 Mar 2:53 am CDT
Extended Forecast for

Lemay MO

  • Overnight

    Overnight: Cloudy, with a low around 40. South wind around 5 mph.

    Low: 40 °F

    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 72. South wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 72 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57. South wind around 9 mph.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 85. South wind 9 to 14 mph, with gusts as high as 25 mph.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66. South wind around 11 mph, with gusts as high as 23 mph.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 40%.

    High: 86 °F

    Slight Chance
    Rain then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Low around 53. Chance of precipitation is 80%.

    Low: 53 °F

    Chance
    T-storms then
    Rain

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm before 1pm, then a chance of rain and thunderstorms after 1pm. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.

    High: 60 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.

    Low: 48 °F

    Rain Likely

Detailed Forecast

Overnight
Cloudy, with a low around 40. South wind around 5 mph.
Sunday
Partly sunny, with a high near 72. South wind 5 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 57. South wind around 9 mph.
Monday
Sunny, with a high near 85. South wind 9 to 14 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 66. South wind around 11 mph, with gusts as high as 23 mph.
Tuesday
A slight chance of rain, then a chance of rain and thunderstorms after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 40%.
Tuesday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 1am. Low around 53. Chance of precipitation is 80%.
Wednesday
Rain likely and possibly a thunderstorm before 1pm, then a chance of rain and thunderstorms after 1pm. Mostly cloudy, with a high near 60. Chance of precipitation is 70%.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 48. Chance of precipitation is 70%.
Thursday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 65. Chance of precipitation is 70%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 46. Chance of precipitation is 60%.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 76.
Friday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Saturday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
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:
1:26 am CDT Mar 29, 2026
Forecast Valid:
3am CDT Mar 29, 2026-6pm CDT Apr 4, 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