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.

Overcast

34°F

1°C

Humidity 73%
Wind Speed W 17 G 30 mph
Barometer 30.08 in (1018.8 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 29 Nov 10:53 pm CST
Extended Forecast for

Smithton IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 23. Breezy, with a west wind 16 to 22 mph, with gusts as high as 31 mph.

    Low: 23 °F

    Mostly Cloudy
    and Breezy

  • Sunday

    Sunday: Mostly cloudy, with a high near 29. Northwest wind 10 to 16 mph, with gusts as high as 26 mph.

    High: 29 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 20. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of snow after noon. Cloudy, with a high near 32. Light east wind.

    High: 32 °F

    Cloudy then
    Chance Snow

  • Monday Night

    Monday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 22. Light and variable wind. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 22 °F

    Snow Likely
    then Chance
    Snow

  • Tuesday

    Tuesday: Partly sunny, with a high near 31.

    High: 31 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 42.

    High: 42 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 19.

    Low: 19 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 23. Breezy, with a west wind 16 to 22 mph, with gusts as high as 31 mph.
Sunday
Mostly cloudy, with a high near 29. Northwest wind 10 to 16 mph, with gusts as high as 26 mph.
Sunday Night
Mostly cloudy, with a low around 20. Northwest wind 5 to 7 mph becoming calm in the evening.
Monday
A 30 percent chance of snow after noon. Cloudy, with a high near 32. Light east wind.
Monday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 22. Light and variable wind. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Tuesday
Partly sunny, with a high near 31.
Tuesday Night
Mostly clear, with a low around 18.
Wednesday
Mostly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 19.
Thursday
Partly sunny, with a high near 29.
Thursday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 20.
Friday
A 20 percent chance of rain. Partly sunny, with a high near 39.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Smithton IL
 38.41°N 89.99°W (Elev. 453 ft)
Last Update:
11:21 pm CST Nov 29, 2025
Forecast Valid:
11pm CST Nov 29, 2025-6pm CST Dec 6, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation