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

68°F

20°C

Humidity 45%
Wind Speed S 6 mph
Barometer 30.12 in (1019.6 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 10 Apr 12:53 am CDT
Extended Forecast for

Lemay MO

  • Overnight

    Overnight: Mostly cloudy, with a low around 62. Southwest wind 6 to 8 mph.

    Low: 62 °F

    Mostly Cloudy

  • Friday

    Friday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 71. Southwest wind 6 to 8 mph becoming northwest in the afternoon. Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 3am, then a chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 53. Northeast wind 3 to 5 mph. Chance of precipitation is 30%.

    Low: 53 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. Southeast wind 5 to 7 mph. Chance of precipitation is 40%.

    High: 75 °F

    Chance
    Showers then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61. South wind around 7 mph.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81.

    High: 81 °F

    Partly Sunny
    then Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    Showers

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 62. Southwest wind 6 to 8 mph.
Friday
A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 4pm, then a chance of showers after 4pm. Mostly cloudy, with a high near 71. Southwest wind 6 to 8 mph becoming northwest in the afternoon. Chance of precipitation is 60%.
Friday Night
A chance of showers and thunderstorms before 3am, then a chance of showers between 3am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 53. Northeast wind 3 to 5 mph. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 75. Southeast wind 5 to 7 mph. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 61. South wind around 7 mph.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81.
Sunday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Monday
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 87.
Monday Night
Mostly cloudy, with a low around 69.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 88.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Wednesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
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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:
1:26 am CDT Apr 10, 2026
Forecast Valid:
1am CDT Apr 10, 2026-6pm CDT Apr 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