Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Lemay MO

  • Tonight

    Tonight: Mostly clear, with a low around 30. North wind 8 to 11 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 50. Northeast wind around 11 mph.

    High: 50 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Rain, snow, and sleet, becoming all rain after 2am.  Low around 35. East wind 7 to 10 mph.  Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.

    Low: 35 °F

    Wintry Mix

  • Monday

    Monday: Rain likely, mainly before noon.  Cloudy, with a high near 45. East wind 6 to 8 mph.  Chance of precipitation is 60%.

    High: 45 °F

    Rain Likely
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain.  Low around 40. Southeast wind around 6 mph.  Chance of precipitation is 80%.

    Low: 40 °F

    Rain

  • Tuesday

    Tuesday: Rain and possibly a thunderstorm before 9am, then rain between 9am and noon, then rain likely and possibly a thunderstorm after noon.  High near 66. Chance of precipitation is 80%.

    High: 66 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain and possibly a thunderstorm.  Low around 54. Chance of precipitation is 80%.

    Low: 54 °F

    Rain

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm.  High near 69. Chance of precipitation is 80%.

    High: 69 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely and possibly a thunderstorm.  Mostly cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 30. North wind 8 to 11 mph.
Sunday
Increasing clouds, with a high near 50. Northeast wind around 11 mph.
Sunday Night
Rain, snow, and sleet, becoming all rain after 2am. Low around 35. East wind 7 to 10 mph. Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.
Monday
Rain likely, mainly before noon. Cloudy, with a high near 45. East wind 6 to 8 mph. Chance of precipitation is 60%.
Monday Night
Rain. Low around 40. Southeast wind around 6 mph. Chance of precipitation is 80%.
Tuesday
Rain and possibly a thunderstorm before 9am, then rain between 9am and noon, then rain likely and possibly a thunderstorm after noon. High near 66. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 54. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm. High near 69. Chance of precipitation is 80%.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Thursday
Rain likely. Partly sunny, with a high near 71. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 57.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Chance of precipitation is 70%.
Friday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 70%.
Saturday
Rain likely. Mostly cloudy, with a high near 68. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Lemay MO
 38.53°N 90.29°W (Elev. 456 ft)
10:01 pm CST Feb 28, 2026
10pm CST Feb 28, 2026-6pm CST Mar 7, 2026
 
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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