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

42°F

6°C

Humidity 79%
Wind Speed S 6 mph
Barometer 29.97 in (1014.9 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill38°F (3°C)
Last update 9 Feb 10:53 pm CST
Extended Forecast for

5 Miles SW Smithton IL

  • Tonight

    Tonight: Clear, with a low around 41. South wind around 7 mph.

    Low: 41 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 66. South wind 6 to 10 mph becoming north in the afternoon.

    High: 66 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 30. North wind 5 to 8 mph.

    Low: 30 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 50. North wind 3 to 6 mph.

    High: 50 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 31. Calm wind.

    Low: 31 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

  • Friday

    Friday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain

Detailed Forecast

Tonight
Clear, with a low around 41. South wind around 7 mph.
Tuesday
Mostly sunny, with a high near 66. South wind 6 to 10 mph becoming north in the afternoon.
Tuesday Night
Partly cloudy, with a low around 30. North wind 5 to 8 mph.
Wednesday
Mostly sunny, with a high near 50. North wind 3 to 6 mph.
Wednesday Night
Mostly cloudy, with a low around 31. Calm wind.
Thursday
Mostly cloudy, with a high near 46.
Thursday Night
A 30 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 32.
Friday
Mostly cloudy, with a high near 48.
Friday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 36.
Saturday
Rain likely, mainly after noon. Cloudy, with a high near 48. Chance of precipitation is 70%.
Saturday Night
Rain. Low around 38. Chance of precipitation is 80%.
Sunday
A 40 percent chance of rain. Partly sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 35.
Washington's Birthday
Mostly sunny, with a high near 58.
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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:
10:31 pm CST Feb 9, 2026
Forecast Valid:
11pm CST Feb 9, 2026-6pm CST Feb 16, 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