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

38°F

3°C

Humidity 55%
Wind Speed W 20 G 41 mph
Barometer 30.12 in (1020.2 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 26 Nov 5:53 am CST
Extended Forecast for

Smithton IL

  • Today

    Today: Mostly cloudy through mid morning, then gradual clearing, with a high near 44. Breezy, with a west wind 11 to 21 mph, with gusts as high as 38 mph.

    High: 44 °F

    Becoming
    Sunny and
    Breezy

  • Tonight

    Tonight: Increasing clouds, with a low around 30. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Increasing
    Clouds

  • Thanksgiving Day

    Thanksgiving Day: Sunny, with a high near 43. Northwest wind 7 to 11 mph.

    High: 43 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 23. Northwest wind around 6 mph becoming calm in the evening.

    Low: 23 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 40. Light and variable wind.

    High: 40 °F

    Sunny

  • Friday Night

    Friday Night: A 50 percent chance of snow after 3am. Cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Snow

  • Saturday

    Saturday: Rain, possibly mixed with snow. High near 38. Chance of precipitation is 90%.

    High: 38 °F

    Rain/Snow

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight. Cloudy, with a low around 30. Chance of precipitation is 70%.

    Low: 30 °F

    Rain Likely
    then Chance
    Rain

  • Sunday

    Sunday: A 30 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 37.

    High: 37 °F

    Chance Rain

Detailed Forecast

Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 44. Breezy, with a west wind 11 to 21 mph, with gusts as high as 38 mph.
Tonight
Increasing clouds, with a low around 30. Northwest wind 9 to 11 mph, with gusts as high as 21 mph.
Thanksgiving Day
Sunny, with a high near 43. Northwest wind 7 to 11 mph.
Thursday Night
Mostly clear, with a low around 23. Northwest wind around 6 mph becoming calm in the evening.
Friday
Sunny, with a high near 40. Light and variable wind.
Friday Night
A 50 percent chance of snow after 3am. Cloudy, with a low around 30.
Saturday
Rain, possibly mixed with snow. High near 38. Chance of precipitation is 90%.
Saturday Night
Rain likely, mainly before midnight. Cloudy, with a low around 30. Chance of precipitation is 70%.
Sunday
A 30 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 37.
Sunday Night
A 20 percent chance of snow. Mostly cloudy, with a low around 19.
Monday
A 20 percent chance of snow. Mostly cloudy, with a high near 30.
Monday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 18.
Tuesday
A 20 percent chance of snow. Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Smithton IL
 38.44°N 89.99°W (Elev. 449 ft)
Last Update:
6:26 am CST Nov 26, 2025
Forecast Valid:
6am CST Nov 26, 2025-6pm CST Dec 2, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation