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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Smithton IL

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm before 4pm, then isolated showers between 4pm and 5pm, then isolated showers and thunderstorms after 5pm. High near 61. Northeast wind around 6 mph becoming light and variable. Chance of precipitation is 80%.

    High: 61 °F

    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Patchy fog after 9pm. Low around 55. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 90%.

    Low: 55 °F

    T-storms and
    Patchy Fog

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 9am, then isolated showers between 9am and 11am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 68. West wind 5 to 8 mph becoming light and variable in the afternoon. Chance of precipitation is 70%.

    High: 68 °F

    Showers
    Likely and
    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Scattered showers, with thunderstorms also possible after 9pm. Mostly cloudy, with a low around 57. Calm wind becoming south 5 to 8 mph in the evening. Chance of precipitation is 50%.

    Low: 57 °F

    Scattered
    Showers then
    Scattered
    T-storms

  • Friday

    Friday: Isolated showers. Partly sunny, with a high near 78. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 20%.

    High: 78 °F

    Isolated
    Showers and
    Breezy

  • Friday Night

    Friday Night: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 57. Chance of precipitation is 80%.

    Low: 57 °F

    Scattered
    T-storms then
    Showers

  • Saturday

    Saturday: Scattered showers, mainly before noon. Mostly cloudy, with a high near 67. Chance of precipitation is 50%.

    High: 67 °F

    Scattered
    Showers then
    Isolated
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm before 4pm, then isolated showers between 4pm and 5pm, then isolated showers and thunderstorms after 5pm. High near 61. Northeast wind around 6 mph becoming light and variable. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms before 3am, then showers and possibly a thunderstorm, mainly after 3am. Patchy fog after 9pm. Low around 55. Calm wind becoming south around 6 mph after midnight. Chance of precipitation is 90%.
Thursday
Showers likely and possibly a thunderstorm before 9am, then isolated showers between 9am and 11am. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 68. West wind 5 to 8 mph becoming light and variable in the afternoon. Chance of precipitation is 70%.
Thursday Night
Scattered showers, with thunderstorms also possible after 9pm. Mostly cloudy, with a low around 57. Calm wind becoming south 5 to 8 mph in the evening. Chance of precipitation is 50%.
Friday
Isolated showers. Partly sunny, with a high near 78. Breezy, with a south wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 20%.
Friday Night
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 57. Chance of precipitation is 80%.
Saturday
Scattered showers, mainly before noon. Mostly cloudy, with a high near 67. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 42.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 47.
Monday
Sunny, with a high near 76.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 49. Chance of precipitation is 90%.
Wednesday
Showers likely. Mostly cloudy, with a high near 58. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Smithton IL
 38.41°N 89.99°W (Elev. 453 ft)
Last Update:
3:16 pm CST Mar 4, 2026
Forecast Valid:
3pm CST Mar 4, 2026-6pm CDT Mar 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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