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.

Fair

56°F

13°C

Humidity 51%
Wind Speed S 7 mph
Barometer 29.87 in (1011.3 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 26 Feb 12:53 pm CST
Extended Forecast for

5 Miles SW Smithton IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 56. Light and variable wind.

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 37. Calm wind becoming southwest around 5 mph.

    Low: 37 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69. Light southwest wind becoming west 6 to 11 mph in the morning.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41. South wind 5 to 7 mph becoming light and variable after midnight.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 65. Light and variable wind becoming east 5 to 9 mph in the morning.

    High: 65 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of rain and snow after noon. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.

    High: 42 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow. Low around 29. Chance of precipitation is 80%.

    Low: 29 °F

    Rain/Snow

  • Monday

    Monday: A slight chance of rain and snow before noon. Mostly cloudy, with a high near 41. Chance of precipitation is 20%.

    High: 41 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 56. Light and variable wind.
Tonight
Mostly clear, with a low around 37. Calm wind becoming southwest around 5 mph.
Friday
Sunny, with a high near 69. Light southwest wind becoming west 6 to 11 mph in the morning.
Friday Night
Mostly clear, with a low around 41. South wind 5 to 7 mph becoming light and variable after midnight.
Saturday
Mostly sunny, with a high near 65. Light and variable wind becoming east 5 to 9 mph in the morning.
Saturday Night
Partly cloudy, with a low around 30.
Sunday
A chance of rain and snow after noon. Mostly cloudy, with a high near 42. Chance of precipitation is 40%.
Sunday Night
Rain and snow. Low around 29. Chance of precipitation is 80%.
Monday
A slight chance of rain and snow before noon. Mostly cloudy, with a high near 41. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 31.
Tuesday
Rain likely. Cloudy, with a high near 47. Chance of precipitation is 60%.
Tuesday Night
Rain likely. Cloudy, with a low around 38. Chance of precipitation is 60%.
Wednesday
Rain likely. Cloudy, with a high near 58. Chance of precipitation is 60%.
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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:
12:26 pm CST Feb 26, 2026
Forecast Valid:
1pm CST Feb 26, 2026-6pm CST Mar 4, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation