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

43°F

6°C

Humidity 58%
Wind Speed Calm
Barometer 30.07 in (1018.3 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Last update 13 Mar 10:53 pm CDT
Extended Forecast for

Pevely MO

  • Tonight

    Tonight: Partly cloudy, with a low around 35. Light northeast wind.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 66. Light and variable wind becoming southeast 5 to 9 mph in the morning.

    High: 66 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 53. Southeast wind 6 to 10 mph, with gusts as high as 23 mph.

    Low: 53 °F

    Partly Cloudy

  • Sunday

    Sunday: Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 69. South wind 13 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.

    High: 69 °F

    Chance Rain
    then Showers

  • Sunday Night

    Sunday Night: Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 20. West wind 14 to 17 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 20 °F

    Rain/Snow

  • Monday

    Monday: A 20 percent chance of snow before 1pm. Partly sunny, with a high near 30.

    High: 30 °F

    Slight Chance
    Snow

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of snow before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 20%.

    Low: 28 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 35. Light northeast wind.
Saturday
Mostly sunny, with a high near 66. Light and variable wind becoming southeast 5 to 9 mph in the morning.
Saturday Night
Partly cloudy, with a low around 53. Southeast wind 6 to 10 mph, with gusts as high as 23 mph.
Sunday
Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 69. South wind 13 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.
Sunday Night
Rain before 10pm, then snow, possibly mixed with rain between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 20. West wind 14 to 17 mph, with gusts as high as 38 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
A 20 percent chance of snow before 1pm. Partly sunny, with a high near 30.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Sunny, with a high near 39.
Tuesday Night
A slight chance of snow before 1am, then a slight chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Pevely MO
 38.27°N 90.39°W (Elev. 456 ft)
Last Update:
8:31 pm CDT Mar 13, 2026
Forecast Valid:
11pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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