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

42°F

6°C

Humidity 85%
Wind Speed E 5 mph
Barometer 30.09 in (1018.9 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 9 Jan 11:53 pm CST
Extended Forecast for

Smithton IL

  • Overnight

    Overnight: A 30 percent chance of rain, mainly after 5am. Mostly cloudy, with a low around 38. Calm wind becoming northwest around 5 mph.

    Low: 38 °F

    Chance Rain

  • Saturday

    Saturday: Rain likely, mainly before 9am. 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 60%.

    High: 47 °F

    Rain Likely
    then Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain before 10pm, then a slight chance of snow between 10pm and 11pm. Partly cloudy, with a low around 25. Northwest wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.

    Low: 25 °F

    Slight Chance
    Rain/Snow
    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

Overnight
A 30 percent chance of rain, mainly after 5am. Mostly cloudy, with a low around 38. Calm wind becoming northwest around 5 mph.
Saturday
Rain likely, mainly before 9am. 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 60%.
Saturday Night
A slight chance of rain before 10pm, then a slight chance of snow between 10pm and 11pm. Partly cloudy, with a low around 25. Northwest wind 9 to 14 mph, with gusts as high as 28 mph. Chance of precipitation is 20%.
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.
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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:
10:31 pm CST Jan 9, 2026
Forecast Valid:
12am CST Jan 10, 2026-6pm CST Jan 16, 2026
 
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