National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

48°F

9°C

Humidity 52%
Wind Speed NW 14 mph
Barometer 30.30 in (1026.3 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 5 Apr 9:53 am CDT
Extended Forecast for

3 Miles NNW Smithton IL

  • Today

    Today: Sunny, with a high near 58. Northwest wind 11 to 14 mph, with gusts as high as 21 mph.

    High: 58 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 40. West wind 5 to 7 mph.

    Low: 40 °F

    Clear

  • Monday

    Monday: Increasing clouds, with a high near 62. Northwest wind 6 to 11 mph.

    High: 62 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. North wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53. East wind 7 to 9 mph.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

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

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 58. Northwest wind 11 to 14 mph, with gusts as high as 21 mph.
Tonight
Clear, with a low around 40. West wind 5 to 7 mph.
Monday
Increasing clouds, with a high near 62. Northwest wind 6 to 11 mph.
Monday Night
Mostly cloudy, with a low around 37. North wind 7 to 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 53. East wind 7 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 20%.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Smithton IL
 38.46°N 90.01°W (Elev. 499 ft)
Last Update:
9:51 am CDT Apr 5, 2026
Forecast Valid:
10am CDT Apr 5, 2026-6pm CDT Apr 11, 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