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

5 Miles SW Smithton IL

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Patchy dense fog between 2am and 4am. Otherwise, cloudy, with a low around 51. Northeast wind around 6 mph. Chance of precipitation is 70%.

    Low: 51 °F

    Chance
    Showers then
    Showers
    Likely and
    Patchy Dense
    Fog

  • Wednesday

    Wednesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. High near 66. Calm wind becoming northeast 5 to 7 mph in the afternoon. Chance of precipitation is 90%.

    High: 66 °F

    Showers
    Likely then
    Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm. Low around 55. Light and variable wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 90%.

    Low: 55 °F

    T-storms then
    Showers

  • Thursday

    Thursday: Showers likely, mainly before noon. Mostly cloudy, with a high near 70. Southwest wind 5 to 8 mph. Chance of precipitation is 70%.

    High: 70 °F

    Showers
    Likely then
    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 58. South wind 5 to 8 mph. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely

  • Friday

    Friday: A 30 percent chance of showers before noon. Partly sunny, with a high near 79.

    High: 79 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 59. Chance of precipitation is 90%.

    Low: 59 °F

    Chance
    Showers then
    Showers

  • Saturday

    Saturday: Showers likely, mainly before noon. Partly sunny, with a high near 69. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Patchy dense fog between 2am and 4am. Otherwise, cloudy, with a low around 51. Northeast wind around 6 mph. Chance of precipitation is 70%.
Wednesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. High near 66. Calm wind becoming northeast 5 to 7 mph in the afternoon. Chance of precipitation is 90%.
Wednesday Night
Showers and possibly a thunderstorm. Low around 55. Light and variable wind becoming northwest 5 to 7 mph after midnight. Chance of precipitation is 90%.
Thursday
Showers likely, mainly before noon. Mostly cloudy, with a high near 70. Southwest wind 5 to 8 mph. Chance of precipitation is 70%.
Thursday Night
A chance of showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then showers likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 58. South wind 5 to 8 mph. Chance of precipitation is 60%.
Friday
A 30 percent chance of showers before noon. Partly sunny, with a high near 79.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 59. Chance of precipitation is 90%.
Saturday
Showers likely, mainly before noon. Partly sunny, with a high near 69. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 44.
Sunday
Sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 48.
Monday
A 20 percent chance of showers. Sunny, with a high near 75.
Monday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 58.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.
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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:
4:56 pm CST Mar 3, 2026
Forecast Valid:
7pm CST Mar 3, 2026-6pm CDT Mar 10, 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