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Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

71°F

22°C

Humidity 39%
Wind Speed S 10 G 21 mph
Barometer 30.11 in (1019.2 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 9 Apr 8:53 pm CDT
Extended Forecast for

4 Miles WSW Smithton IL

  • Tonight

    Tonight: Partly cloudy, with a low around 57. South wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 73. Southwest wind 8 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 70%.

    High: 73 °F

    Chance
    Showers then
    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Northeast wind 3 to 7 mph. Chance of precipitation is 40%.

    Low: 51 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. East wind around 7 mph becoming southeast in the afternoon. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 58. Southeast wind around 7 mph.

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 79.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.

    Low: 64 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.

    High: 82 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 57. South wind 7 to 10 mph, with gusts as high as 20 mph.
Friday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 73. Southwest wind 8 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 70%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51. Northeast wind 3 to 7 mph. Chance of precipitation is 40%.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. East wind around 7 mph becoming southeast in the afternoon. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 58. Southeast wind around 7 mph.
Sunday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 79.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 82. Chance of precipitation is 40%.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 84.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Smithton IL
 38.37°N 90.04°W (Elev. 499 ft)
Last Update:
8:26 pm CDT Apr 9, 2026
Forecast Valid:
9pm CDT Apr 9, 2026-6pm CDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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