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

41°F

5°C

Humidity 49%
Wind Speed Calm
Barometer 30.31 in (1026.6 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 11 Feb 5:53 pm CST
Extended Forecast for

5 Miles SW Smithton IL

  • Tonight

    Tonight: Mostly clear, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 51. Calm wind becoming south around 6 mph in the afternoon.

    High: 51 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 31. Light southeast wind.

    Low: 31 °F

    Mostly Cloudy

  • Friday

    Friday: Sunny, with a high near 57. Calm wind becoming south 5 to 7 mph in the morning.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36. Light south wind.

    Low: 36 °F

    Mostly Cloudy

  • Saturday

    Saturday: Rain likely, mainly after noon. Cloudy, with a high near 52. Chance of precipitation is 60%.

    High: 52 °F

    Chance Rain
    then Rain
    Likely

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.

    Low: 43 °F

    Rain Likely

  • Sunday

    Sunday: A 30 percent chance of rain before noon. Mostly sunny, with a high near 55.

    High: 55 °F

    Chance Rain
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 31. Calm wind.
Thursday
Partly sunny, with a high near 51. Calm wind becoming south around 6 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 31. Light southeast wind.
Friday
Sunny, with a high near 57. Calm wind becoming south 5 to 7 mph in the morning.
Friday Night
Mostly cloudy, with a low around 36. Light south wind.
Saturday
Rain likely, mainly after noon. Cloudy, with a high near 52. Chance of precipitation is 60%.
Saturday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Sunday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 36.
Washington's Birthday
Mostly sunny, with a high near 60.
Monday Night
Mostly cloudy, with a low around 45.
Tuesday
Mostly cloudy, with a high near 64.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
A 20 percent chance of rain. Mostly sunny, with a high near 68.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Smithton IL
 38.37°N 90.04°W (Elev. 499 ft)
Last Update:
4:16 pm CST Feb 11, 2026
Forecast Valid:
7pm CST Feb 11, 2026-6pm CST Feb 18, 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