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

49°F

9°C

Humidity 48%
Wind Speed N 12 mph
Barometer 30.07 in (1018.4 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 10 Feb 7:53 pm CST
Extended Forecast for

5 Miles SW Smithton IL

  • Tonight

    Tonight: Mostly clear, with a low around 30. North wind 7 to 11 mph, with gusts as high as 26 mph.

    Low: 30 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 50. North wind 5 to 8 mph.

    High: 50 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 30. North wind around 5 mph becoming calm in the evening.

    Low: 30 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Cloudy, with a high near 48. Calm wind becoming southeast around 6 mph in the morning.

    High: 48 °F

    Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 33. Southeast wind around 6 mph becoming calm in the evening.

    Low: 33 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of rain. Cloudy, with a high near 51.

    High: 51 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.

    Low: 41 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly clear, with a low around 30. North wind 7 to 11 mph, with gusts as high as 26 mph.
Wednesday
Sunny, with a high near 50. North wind 5 to 8 mph.
Wednesday Night
Increasing clouds, with a low around 30. North wind around 5 mph becoming calm in the evening.
Thursday
Cloudy, with a high near 48. Calm wind becoming southeast around 6 mph in the morning.
Thursday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 33. Southeast wind around 6 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 53.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
A 40 percent chance of rain. Cloudy, with a high near 51.
Saturday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Sunday
A 40 percent chance of rain before noon. Partly sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 35.
Washington's Birthday
Sunny, with a high near 60.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Smithton IL
 38.37°N 90.04°W (Elev. 499 ft)
Last Update:
7:31 pm CST Feb 10, 2026
Forecast Valid:
8pm CST Feb 10, 2026-6pm CST Feb 17, 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