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

58°F

14°C

Humidity 75%
Wind Speed SE 5 mph
Barometer 29.62 in (1002.9 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 18 Feb 9:53 pm CST
Extended Forecast for

3 Miles S Centreville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 50. South wind 3 to 5 mph.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Scattered showers and thunderstorms, mainly before noon. Partly sunny, with a high near 69. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.

    High: 69 °F

    Scattered
    T-storms then
    Isolated
    T-storms and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. West wind 11 to 18 mph, with gusts as high as 29 mph.

    Low: 36 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 50. West wind 6 to 16 mph, with gusts as high as 26 mph.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 31. Northwest wind around 6 mph.

    Low: 31 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain and snow. Mostly sunny, with a high near 45. Chance of precipitation is 20%.

    High: 45 °F

    Slight Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 40.

    High: 40 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 21.

    Low: 21 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 50. South wind 3 to 5 mph.
Thursday
Scattered showers and thunderstorms, mainly before noon. Partly sunny, with a high near 69. Breezy, with a south wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 50%.
Thursday Night
Mostly clear, with a low around 36. West wind 11 to 18 mph, with gusts as high as 29 mph.
Friday
Sunny, with a high near 50. West wind 6 to 16 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 31. Northwest wind around 6 mph.
Saturday
A slight chance of rain and snow. Mostly sunny, with a high near 45. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 25.
Sunday
Sunny, with a high near 40.
Sunday Night
Clear, with a low around 21.
Monday
Sunny, with a high near 39.
Monday Night
Mostly clear, with a low around 22.
Tuesday
Mostly sunny, with a high near 50.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Centreville IL
 38.53°N 90.09°W (Elev. 482 ft)
Last Update:
9:36 pm CST Feb 18, 2026
Forecast Valid:
10pm CST Feb 18, 2026-6pm CST Feb 25, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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