Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

84°F

29°C

Humidity 22%
Wind Speed Calm
Barometer 30.03 in (1016.6 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 8 Oct 4:53 pm CDT
Extended Forecast for

3 Miles SSW Belleville IL

  • Tonight

    Tonight: Clear, with a low around 52. Light southeast wind.

    Low: 52 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 89. South wind 5 to 9 mph.

    High: 89 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. South wind 5 to 7 mph.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Increasing clouds, with a high near 83. Light south wind becoming southeast 5 to 10 mph in the morning.

    High: 83 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A 40 percent chance of rain.  Mostly cloudy, with a low around 60. East wind 6 to 9 mph.

    Low: 60 °F

    Chance Rain

  • Sunday

    Sunday: Partly sunny, with a high near 79.

    High: 79 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 52. Light southeast wind.
Friday
Sunny, with a high near 89. South wind 5 to 9 mph.
Friday Night
Mostly clear, with a low around 60. South wind 5 to 7 mph.
Saturday
Increasing clouds, with a high near 83. Light south wind becoming southeast 5 to 10 mph in the morning.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 60. East wind 6 to 9 mph.
Sunday
Partly sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 60.
Columbus Day
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Sunny, with a high near 86.
Tuesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 60.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 81.
Wednesday Night
A 30 percent chance of showers. Partly cloudy, with a low around 63.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Belleville IL
 38.5°N 90.01°W (Elev. 499 ft)
4:51 pm CDT Oct 8, 2026
4pm CDT Oct 8, 2026-6pm CDT Oct 15, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database