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

9°F

-13°C

Humidity 30%
Wind Speed N 16 G 25 mph
Barometer 30.71 in (1040.6 mb)
Dewpoint -16°F (-27°C)
Visibility 10.00 mi
Wind Chill-8°F (-22°C)
Last update 23 Jan 12:53 pm CST
Extended Forecast for

4 Miles WSW Smithton IL

Cold Weather Advisory January 24, 12:00am until January 24, 12:00pm
Winter Storm Warning January 24, 12:00am until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning

  • This Afternoon

    This Afternoon: Mostly cloudy and cold, with a steady temperature around 10. North wind 14 to 16 mph, with gusts as high as 23 mph.

    High: 10 °F

    Cold

  • Tonight

    Tonight: A 20 percent chance of snow after 5am. Cloudy, with a low around 4. Wind chill values as low as -10. Northeast wind 11 to 14 mph, with gusts as high as 21 mph.

    Low: 4 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Snow, mainly after 11am. High near 12. Wind chill values as low as -10. Northeast wind 10 to 13 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 12 °F

    Snow Likely
    then Snow

  • Saturday Night

    Saturday Night: Snow, mainly after 9pm. Low around 9. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 9 °F

    Snow

  • Sunday

    Sunday: Snow, mainly before noon. High near 15. North wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

    High: 15 °F

    Snow then
    Chance Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around -1.

    Low: -1 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny and cold, with a high near 17.

    High: 17 °F

    Cold

  • Monday Night

    Monday Night: Clear, with a low around 5.

    Low: 5 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 33.

    High: 33 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy and cold, with a steady temperature around 10. North wind 14 to 16 mph, with gusts as high as 23 mph.
Tonight
A 20 percent chance of snow after 5am. Cloudy, with a low around 4. Wind chill values as low as -10. Northeast wind 11 to 14 mph, with gusts as high as 21 mph.
Saturday
Snow, mainly after 11am. High near 12. Wind chill values as low as -10. Northeast wind 10 to 13 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Saturday Night
Snow, mainly after 9pm. Low around 9. North wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Sunday
Snow, mainly before noon. High near 15. North wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around -1.
Monday
Mostly sunny and cold, with a high near 17.
Monday Night
Clear, with a low around 5.
Tuesday
Mostly sunny, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 9.
Wednesday
Partly sunny, with a high near 24.
Wednesday Night
Partly cloudy, with a low around 3.
Thursday
Mostly sunny and cold, with a high near 19.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Smithton IL
 38.37°N 90.04°W (Elev. 499 ft)
Last Update:
11:11 am CST Jan 23, 2026
Forecast Valid:
1pm CST Jan 23, 2026-6pm CST Jan 29, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation