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.

Light Snow

23°F

-5°C

Humidity 65%
Wind Speed NW 14 mph
Barometer 30.17 in (1022.2 mb)
Dewpoint 13°F (-11°C)
Visibility 7.00 mi
Wind Chill11°F (-12°C)
Last update 17 Jan 12:53 pm CST
Extended Forecast for

Smithton IL

  • This Afternoon

    This Afternoon: A chance of flurries. Mostly cloudy, with a high near 26. West wind 14 to 17 mph, with gusts as high as 24 mph.

    High: 26 °F

    Chance
    Flurries

  • Tonight

    Tonight: A chance of flurries before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 12. West wind 5 to 11 mph, with gusts as high as 20 mph.

    Low: 12 °F

    Chance
    Flurries

  • Sunday

    Sunday: A chance of flurries after 10am. Increasing clouds, with a high near 33. Southwest wind 5 to 14 mph, with gusts as high as 21 mph.

    High: 33 °F

    Chance
    Flurries

  • Sunday Night

    Sunday Night: A chance of flurries before 9pm. Partly cloudy, with a low around 14. Southwest wind 9 to 16 mph becoming northwest after midnight. Winds could gust as high as 26 mph.

    Low: 14 °F

    Chance
    Flurries

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 22. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.

    High: 22 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 11.

    Low: 11 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 47.

    High: 47 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A chance of flurries. Mostly cloudy, with a high near 26. West wind 14 to 17 mph, with gusts as high as 24 mph.
Tonight
A chance of flurries before 9pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 12. West wind 5 to 11 mph, with gusts as high as 20 mph.
Sunday
A chance of flurries after 10am. Increasing clouds, with a high near 33. Southwest wind 5 to 14 mph, with gusts as high as 21 mph.
Sunday Night
A chance of flurries before 9pm. Partly cloudy, with a low around 14. Southwest wind 9 to 16 mph becoming northwest after midnight. Winds could gust as high as 26 mph.
M.L.King Day
Sunny, with a high near 22. Northwest wind 8 to 14 mph, with gusts as high as 23 mph.
Monday Night
Mostly clear, with a low around 11.
Tuesday
Sunny, with a high near 39.
Tuesday Night
Partly cloudy, with a low around 29.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
A slight chance of rain before midnight, then a slight chance of snow. Partly cloudy, with a low around 21. Chance of precipitation is 20%.
Thursday
A 20 percent chance of snow. Mostly sunny, with a high near 34.
Thursday Night
A 20 percent chance of snow. Partly cloudy, with a low around 18.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 38.
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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:
10:56 am CST Jan 17, 2026
Forecast Valid:
1pm CST Jan 17, 2026-6pm CST Jan 23, 2026
 
Forecast Discussion
 
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