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.

Fair

73°F

23°C

Humidity 71%
Wind Speed SW 15 G 26 mph
Barometer 29.88 in (1011.4 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 14 Apr 4:53 am CDT
Extended Forecast for

5 Miles SW Smithton IL

  • Today

    Today: A 20 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 87. South wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 87 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 68. South wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.

    Low: 68 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. South wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 63. South wind 7 to 10 mph. Chance of precipitation is 80%.

    Low: 63 °F

    Chance
    T-storms then
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 79. Southwest wind 7 to 11 mph. Chance of precipitation is 70%.

    High: 79 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 59.

    Low: 59 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 71. Chance of precipitation is 50%.

    High: 71 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms before 8am. Mostly sunny, with a high near 87. South wind 9 to 15 mph, with gusts as high as 24 mph.
Tonight
A slight chance of showers and thunderstorms before midnight, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 68. South wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Wednesday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 81. South wind 9 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 63. South wind 7 to 10 mph. Chance of precipitation is 80%.
Thursday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 79. Southwest wind 7 to 11 mph. Chance of precipitation is 70%.
Thursday Night
Mostly clear, with a low around 59.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 71. Chance of precipitation is 50%.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 41.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 69.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Smithton IL
 38.37°N 90.04°W (Elev. 499 ft)
Last Update:
5:41 am CDT Apr 14, 2026
Forecast Valid:
5am CDT Apr 14, 2026-6pm CDT Apr 20, 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