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

25°F

-4°C

Humidity 48%
Wind Speed NW 6 mph
Barometer 29.98 in (1015.5 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 17 Jan 3:53 am CST
Extended Forecast for

5 Miles SW Smithton IL

  • Overnight

    Overnight: A chance of flurries. Mostly clear, with a low around 21. West wind around 9 mph, with gusts as high as 20 mph.

    Low: 21 °F

    Chance
    Flurries

  • Saturday

    Saturday: A slight chance of snow before 10am, then a chance of flurries after 10am. Sunny through mid morning, then becoming cloudy, with a high near 26. West wind 8 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 26 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: A chance of flurries before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 11. West wind 6 to 14 mph, with gusts as high as 22 mph.

    Low: 11 °F

    Chance
    Flurries

  • Sunday

    Sunday: A chance of flurries after noon. Increasing clouds, with a high near 33. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.

    High: 33 °F

    Chance
    Flurries

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 13. Southwest wind 8 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph.

    Low: 13 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly 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

Detailed Forecast

Overnight
A chance of flurries. Mostly clear, with a low around 21. West wind around 9 mph, with gusts as high as 20 mph.
Saturday
A slight chance of snow before 10am, then a chance of flurries after 10am. Sunny through mid morning, then becoming cloudy, with a high near 26. West wind 8 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Saturday Night
A chance of flurries before 7pm. Mostly cloudy, then gradually becoming clear, with a low around 11. West wind 6 to 14 mph, with gusts as high as 22 mph.
Sunday
A chance of flurries after noon. Increasing clouds, with a high near 33. Southwest wind 6 to 13 mph, with gusts as high as 21 mph.
Sunday Night
Partly cloudy, with a low around 13. Southwest wind 8 to 14 mph becoming northwest after midnight. Winds could gust as high as 23 mph.
M.L.King Day
Mostly sunny, with a high near 23.
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 and 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
Mostly sunny, with a high near 38.
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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:
3:16 am CST Jan 17, 2026
Forecast Valid:
4am CST Jan 17, 2026-6pm CST Jan 23, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

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Chance of Precipitation