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.

N/A

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

3 Miles S Centreville IL

  • This Afternoon

    This Afternoon: A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 65. Southeast wind around 6 mph.

    High: 65 °F

    Chance Rain

  • Tonight

    Tonight: A slight chance of rain and thunderstorms before 7pm, then a slight chance of rain between 7pm and 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Southeast wind 5 to 13 mph becoming north in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 47. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 47 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Rain and snow likely before midnight, then rain and snow likely, possibly mixed with sleet between midnight and 3am, then rain and snow likely after 3am. Cloudy, with a low around 34. Northeast wind around 9 mph. Chance of precipitation is 70%. Little or no snow and sleet accumulation expected.

    Low: 34 °F

    Wintry Mix
    Likely

  • Monday

    Monday: A 50 percent chance of rain, mainly before noon. Cloudy, with a high near 45. East wind 8 to 10 mph.

    High: 45 °F

    Chance Rain
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain. Low around 40. 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 65. Chance of precipitation is 80%.

    High: 65 °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

Detailed Forecast

This Afternoon
A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 65. Southeast wind around 6 mph.
Tonight
A slight chance of rain and thunderstorms before 7pm, then a slight chance of rain between 7pm and 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. Southeast wind 5 to 13 mph becoming north in the evening. Winds could gust as high as 22 mph. Chance of precipitation is 20%.
Sunday
Partly sunny, with a high near 47. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Rain and snow likely before midnight, then rain and snow likely, possibly mixed with sleet between midnight and 3am, then rain and snow likely after 3am. Cloudy, with a low around 34. Northeast wind around 9 mph. Chance of precipitation is 70%. Little or no snow and sleet accumulation expected.
Monday
A 50 percent chance of rain, mainly before noon. Cloudy, with a high near 45. East wind 8 to 10 mph.
Monday Night
Rain. Low around 40. 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 65. 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 73. Chance of precipitation is 60%.
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 67. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Centreville IL
 38.53°N 90.09°W (Elev. 482 ft)
Last Update:
4:36 pm CST Feb 28, 2026
Forecast Valid:
4pm CST Feb 28, 2026-6pm CST Mar 7, 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