National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

44°F

7°C

Humidity 79%
Wind Speed SE 6 mph
Barometer 30.13 in (1020.5 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 9 Jan 7:53 pm CST
Extended Forecast for

Smithton IL

  • Tonight

    Tonight: A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 38. East wind around 6 mph becoming calm.

    Low: 38 °F

    Cloudy then
    Slight Chance
    Rain

  • Saturday

    Saturday: A slight chance of rain before 8am, then a chance of sprinkles after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.

    High: 47 °F

    Slight Chance
    Rain then
    Sunny

  • Saturday Night

    Saturday Night: A chance of sprinkles and flurries before 11pm, then a chance of flurries between 11pm and midnight. Partly cloudy, with a low around 25. Northwest wind 9 to 14 mph, with gusts as high as 28 mph.

    Low: 25 °F

    Chance
    Sprinkles/Flurries
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 38. Northwest wind 5 to 14 mph, with gusts as high as 24 mph.

    High: 38 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25. Calm wind becoming south around 6 mph after midnight.

    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 36.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Partly sunny, with a high near 57.

    High: 57 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of rain after 3am. Mostly cloudy, with a low around 38. East wind around 6 mph becoming calm.
Saturday
A slight chance of rain before 8am, then a chance of sprinkles after 5pm. Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Saturday Night
A chance of sprinkles and flurries before 11pm, then a chance of flurries between 11pm and midnight. Partly cloudy, with a low around 25. Northwest wind 9 to 14 mph, with gusts as high as 28 mph.
Sunday
Sunny, with a high near 38. Northwest wind 5 to 14 mph, with gusts as high as 24 mph.
Sunday Night
Mostly clear, with a low around 25. Calm wind becoming south around 6 mph after midnight.
Monday
Sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 36.
Tuesday
Partly sunny, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 22.
Thursday
Mostly sunny, with a high near 36.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Partly sunny, with a high near 44.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Smithton IL
 38.41°N 89.99°W (Elev. 453 ft)
Last Update:
8:26 pm CST Jan 9, 2026
Forecast Valid:
8pm CST Jan 9, 2026-6pm CST Jan 16, 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