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

56°F

13°C

Humidity 40%
Wind Speed NW 18 G 29 mph
Barometer 30.09 in (1018.8 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 18 Apr 3:53 pm CDT
Extended Forecast for

Pevely MO

  • Tonight

    Tonight: Clear, with a low around 40. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph.

    Low: 40 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 69. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph.

    High: 69 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. Northwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49. Southeast wind around 5 mph becoming south after midnight.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 40. Northwest wind 5 to 9 mph becoming calm in the evening. Winds could gust as high as 20 mph.
Sunday
Sunny, with a high near 69. Calm wind becoming west 5 to 9 mph in the morning. Winds could gust as high as 20 mph.
Sunday Night
Mostly clear, with a low around 39. Northwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 69. Calm wind becoming southeast around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 49. Southeast wind around 5 mph becoming south after midnight.
Tuesday
Sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Mostly sunny, with a high near 83.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 76. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 48.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Pevely MO
 38.29°N 90.39°W (Elev. 495 ft)
Last Update:
1:26 pm CDT Apr 18, 2026
Forecast Valid:
4pm CDT Apr 18, 2026-6pm CDT Apr 25, 2026
 
Forecast Discussion
 
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Additional Resources

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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