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

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

63°F

17°C

Humidity 70%
Wind Speed SW 6 mph
Barometer 29.63 in (1003.0 mb)
Dewpoint 53°F (12°C)
Visibility 10.00 mi
Last update 9 Jan 1:53 am CST
Extended Forecast for

5 Miles SW Smithton IL

  • Overnight

    Overnight: Partly cloudy, with a low around 47. West wind around 15 mph, with gusts as high as 28 mph.

    Low: 47 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 51. West wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 26 mph.

    High: 51 °F

    Partly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 36. Calm wind becoming northwest around 5 mph after midnight.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 47 °F

    Gradual
    Clearing

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 25. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.

    Low: 25 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 25.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Overnight
Partly cloudy, with a low around 47. West wind around 15 mph, with gusts as high as 28 mph.
Friday
Partly sunny, with a high near 51. West wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 26 mph.
Friday Night
A 20 percent chance of rain after 4am. Mostly cloudy, with a low around 36. Calm wind becoming northwest around 5 mph after midnight.
Saturday
Cloudy through mid morning, then gradual clearing, with a high near 47. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 25. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 37.
Sunday Night
Mostly clear, with a low around 25.
Monday
Sunny, with a high near 52.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Partly sunny, with a high near 57.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
Mostly sunny, with a high near 39.
Basemap Options
Click map to change the forecast location
Loading map...
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:
1:36 am CST Jan 9, 2026
Forecast Valid:
2am CST Jan 9, 2026-6pm CST Jan 15, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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