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

61°F

16°C

Humidity 70%
Wind Speed N 13 mph
Barometer 29.85 in (1010.8 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 26 Dec 3:53 pm CST
Extended Forecast for

3 Miles S Centreville IL

  • Tonight

    Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 45. Northwest wind around 6 mph becoming calm.

    Low: 45 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, partly sunny, with a high near 64. Southeast wind 5 to 11 mph.

    High: 64 °F

    Patchy Fog
    then Partly
    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after midnight. Cloudy, with a low around 60. South wind 9 to 11 mph, with gusts as high as 20 mph.

    Low: 60 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday

    Sunday: A chance of rain and thunderstorms before noon, then rain between noon and 3pm, then rain and possibly a thunderstorm after 3pm. High near 73. South wind 9 to 17 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.

    High: 73 °F

    Chance Rain
    then Rain

  • Sunday Night

    Sunday Night: Rain likely, possibly mixing with snow after 9pm, then gradually ending. Mostly cloudy, with a low around 21. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Blustery.
    Rain/Snow
    Likely then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 27. Blustery.

    High: 27 °F

    Mostly Sunny
    and Blustery
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 36.

    High: 36 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 45. Northwest wind around 6 mph becoming calm.
Saturday
Patchy fog before 9am. Otherwise, partly sunny, with a high near 64. Southeast wind 5 to 11 mph.
Saturday Night
A 20 percent chance of rain after midnight. Cloudy, with a low around 60. South wind 9 to 11 mph, with gusts as high as 20 mph.
Sunday
A chance of rain and thunderstorms before noon, then rain between noon and 3pm, then rain and possibly a thunderstorm after 3pm. High near 73. South wind 9 to 17 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 80%.
Sunday Night
Rain likely, possibly mixing with snow after 9pm, then gradually ending. Mostly cloudy, with a low around 21. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday
Mostly sunny, with a high near 27. Blustery.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Sunny, with a high near 36.
Tuesday Night
Partly cloudy, with a low around 27.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 21.
New Year's Day
Mostly sunny, with a high near 31.
Thursday Night
Partly cloudy, with a low around 16.
Friday
Mostly sunny, with a high near 32.
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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:
3:16 pm CST Dec 26, 2025
Forecast Valid:
4pm CST Dec 26, 2025-6pm CST Jan 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation