Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

56°F

13°C

Humidity 77%
Wind Speed N 7 mph
Barometer 30.33 in (1027.0 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 10 Apr 10:53 pm CDT
Extended Forecast for

4 Miles WSW Smithton IL

  • Tonight

    Tonight: Partly cloudy, with a low around 52. Northeast wind 3 to 6 mph.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers, with thunderstorms also possible after 4pm.  Partly sunny, with a high near 72. Southeast wind 6 to 8 mph.  Chance of precipitation is 20%.

    High: 72 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Saturday Night

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

    Low: 58 °F

    Partly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 80. South wind 8 to 18 mph, with gusts as high as 29 mph.

    High: 80 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 65. South wind 11 to 14 mph, with gusts as high as 24 mph.

    Low: 65 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly sunny, with a high near 84.

    High: 84 °F

    Chance
    T-storms then
    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 86. Chance of precipitation is 30%.

    High: 86 °F

    Slight Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Partly cloudy, with a low around 52. Northeast wind 3 to 6 mph.
Saturday
A slight chance of showers, with thunderstorms also possible after 4pm. Partly sunny, with a high near 72. Southeast wind 6 to 8 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 58. Southeast wind around 7 mph.
Sunday
Partly sunny, with a high near 80. South wind 8 to 18 mph, with gusts as high as 29 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 11 to 14 mph, with gusts as high as 24 mph.
Monday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 84.
Monday Night
Partly cloudy, with a low around 66.
Tuesday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 86. Chance of precipitation is 30%.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Thursday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Thursday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Smithton IL
 38.37°N 90.04°W (Elev. 499 ft)
10:26 pm CDT Apr 10, 2026
11pm CDT Apr 10, 2026-6pm CDT Apr 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database