Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

A Few Clouds

47°F

8°C

Humidity 71%
Wind Speed NW 10 mph
Barometer 30.06 in (1017.9 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 9 Jan 9:53 am CST
Extended Forecast for

4 Miles WSW Smithton IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 51. Northwest wind 6 to 9 mph becoming northeast.

    High: 51 °F

    Partly Sunny

  • Tonight

    Tonight: A 20 percent chance of rain after 4am.  Mostly cloudy, with a low around 36. Northeast wind around 6 mph becoming calm.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: A 20 percent chance of rain before 7am.  Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 8 to 17 mph, with gusts as high as 25 mph.

    High: 47 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25. Northwest wind 8 to 14 mph, with gusts as high as 29 mph.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 37. Northwest wind 5 to 14 mph, with gusts as high as 23 mph.

    High: 37 °F

    Sunny

  • Sunday Night

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

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 51. Northwest wind 6 to 9 mph becoming northeast.
Tonight
A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 36. Northeast wind around 6 mph becoming calm.
Saturday
A 20 percent chance of rain before 7am. Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 8 to 17 mph, with gusts as high as 25 mph.
Saturday Night
Partly cloudy, with a low around 25. Northwest wind 8 to 14 mph, with gusts as high as 29 mph.
Sunday
Sunny, with a high near 37. Northwest wind 5 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 25.
Monday
Sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Partly sunny, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly sunny, with a high near 39.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Smithton IL
 38.37°N 90.04°W (Elev. 499 ft)
11:17 am CST Jan 9, 2026
12pm CST Jan 9, 2026-6pm CST Jan 15, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database