Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

70°F

21°C

Humidity 73%
Wind Speed S 12 G 26 mph
Barometer 29.75 in (1007.4 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 9 Mar 6:53 pm CDT
Extended Forecast for

4 Miles SW Smithton IL

  • Tonight

    Tonight: Partly cloudy, with a low around 60. South wind 7 to 13 mph, with gusts as high as 22 mph.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 79. South wind 7 to 15 mph, with gusts as high as 24 mph.

    High: 79 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain and thunderstorms, mainly after 1am.  Mostly cloudy, with a low around 56. South wind 11 to 14 mph, with gusts as high as 26 mph.

    Low: 56 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday

    Wednesday: Rain likely and possibly a thunderstorm before 7am, then showers and possibly a thunderstorm between 7am and 1pm, then showers likely after 1pm.  Temperature rising to near 66 by 10am, then falling to around 50 during the remainder of the day. Southwest wind 14 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph.  Chance of precipitation is 90%.

    High: 66 °F

    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 33. Northwest wind 7 to 16 mph, with gusts as high as 25 mph.

    Low: 33 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 64.

    High: 64 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 60. South wind 7 to 13 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, with a high near 79. South wind 7 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
A 50 percent chance of rain and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 56. South wind 11 to 14 mph, with gusts as high as 26 mph.
Wednesday
Rain likely and possibly a thunderstorm before 7am, then showers and possibly a thunderstorm between 7am and 1pm, then showers likely after 1pm. Temperature rising to near 66 by 10am, then falling to around 50 during the remainder of the day. Southwest wind 14 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, with a low around 33. Northwest wind 7 to 16 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 54.
Thursday Night
Mostly cloudy, with a low around 44.
Friday
Mostly cloudy, with a high near 64.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 69.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
A 50 percent chance of rain. Partly sunny, with a high near 65.
Sunday Night
A chance of rain and snow. Partly cloudy, with a low around 28. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Smithton IL
 38.37°N 90.04°W (Elev. 499 ft)
7:21 pm CDT Mar 9, 2026
7pm CDT Mar 9, 2026-6pm CDT Mar 16, 2026
 
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Additional Resources

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