National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

34°F

1°C

Humidity 82%
Wind Speed N 10 mph
Barometer 30.21 in (1023.1 mb)
Dewpoint 29°F (-2°C)
Visibility 8.00 mi
Wind Chill26°F (-3°C)
Last update 7 Dec 4:53 pm CST
Extended Forecast for

4 Miles WSW Smithton IL

  • This Afternoon

    This Afternoon: A slight chance of drizzle. Cloudy, with a steady temperature around 33. North wind around 11 mph, with gusts as high as 21 mph.

    High: 33 °F

    Slight Chance
    Drizzle

  • Tonight

    Tonight: A slight chance of drizzle before 7pm, then a slight chance of snow between 7pm and 11pm. Cloudy, then gradual clearing toward daybreak, with a low around 23. North wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.

    Low: 23 °F

    Slight Chance
    Drizzle/Snow
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 35. North wind 5 to 8 mph becoming calm in the afternoon.

    High: 35 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 26. Light and variable wind becoming south 5 to 9 mph in the evening.

    Low: 26 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 53. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.

    High: 53 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow before noon. Mostly cloudy, with a high near 36.

    High: 36 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

This Afternoon
A slight chance of drizzle. Cloudy, with a steady temperature around 33. North wind around 11 mph, with gusts as high as 21 mph.
Tonight
A slight chance of drizzle before 7pm, then a slight chance of snow between 7pm and 11pm. Cloudy, then gradual clearing toward daybreak, with a low around 23. North wind 8 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 35. North wind 5 to 8 mph becoming calm in the afternoon.
Monday Night
Partly cloudy, with a low around 26. Light and variable wind becoming south 5 to 9 mph in the evening.
Tuesday
Mostly sunny, with a high near 53. Southwest wind 9 to 13 mph, with gusts as high as 21 mph.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 49.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 27.
Thursday
A 30 percent chance of snow before noon. Mostly cloudy, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 28.
Friday Night
Partly cloudy, with a low around 7.
Saturday
Mostly sunny, with a high near 22.
Saturday Night
Partly cloudy, with a low around 9.
Sunday
Mostly sunny, with a high near 26.
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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:
4:46 pm CST Dec 7, 2025
Forecast Valid:
5pm CST Dec 7, 2025-6pm CST Dec 14, 2025
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation