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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Smithton IL

  • This Afternoon

    This Afternoon: A 20 percent chance of rain before 4pm. Mostly sunny, with a high near 81. South wind 14 to 16 mph, with gusts as high as 28 mph.

    High: 81 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 3am. Low around 62. South wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.

    Low: 62 °F

    Partly Cloudy
    then Rain

  • Saturday

    Saturday: Rain and thunderstorms, mainly before noon. Temperature rising to near 68 by 11am, then falling to around 58 during the remainder of the day. South wind 11 to 16 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.

    High: 68 °F⇓

    T-storms then
    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. Northwest wind 5 to 10 mph becoming light west after midnight.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 66. Calm wind becoming southwest 5 to 7 mph in the morning.

    High: 66 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of rain and thunderstorms, mainly after midnight. Mostly clear, with a low around 59.

    Low: 59 °F

    Slight Chance
    T-storms then
    Chance Rain

  • Tuesday

    Tuesday: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 78. Chance of precipitation is 70%.

    High: 78 °F

    Rain Likely

Detailed Forecast

This Afternoon
A 20 percent chance of rain before 4pm. Mostly sunny, with a high near 81. South wind 14 to 16 mph, with gusts as high as 28 mph.
Tonight
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 3am. Low around 62. South wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%.
Saturday
Rain and thunderstorms, mainly before noon. Temperature rising to near 68 by 11am, then falling to around 58 during the remainder of the day. South wind 11 to 16 mph becoming west in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.
Saturday Night
Partly cloudy, with a low around 38. Northwest wind 5 to 10 mph becoming light west after midnight.
Sunday
Sunny, with a high near 66. Calm wind becoming southwest 5 to 7 mph in the morning.
Sunday Night
Clear, with a low around 45.
Monday
Sunny, with a high near 77.
Monday Night
A 30 percent chance of rain and thunderstorms, mainly after midnight. Mostly clear, with a low around 59.
Tuesday
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after noon. Mostly sunny, with a high near 78. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 53. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm. High near 61. Chance of precipitation is 80%.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 37.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 38.
Friday
Sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Smithton IL
 38.41°N 89.99°W (Elev. 453 ft)
Last Update:
2:41 pm CST Mar 6, 2026
Forecast Valid:
3pm CST Mar 6, 2026-6pm CDT Mar 13, 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