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

  • Tonight

    Tonight: A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 4am. Patchy fog between 4am and 5am. Low around 39. East wind 3 to 6 mph. Chance of precipitation is 80%.

    Low: 39 °F

    Cloudy then
    Rain and
    Patchy Fog

  • Tuesday

    Tuesday: Rain before noon, then a chance of rain and thunderstorms between noon and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 62. Southeast wind 3 to 5 mph. Chance of precipitation is 90%.

    High: 62 °F

    Rain then
    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain likely, then rain and possibly a thunderstorm after midnight. Patchy fog between 1am and 4am. Low around 52. East wind 5 to 7 mph. Chance of precipitation is 80%.

    Low: 52 °F

    Rain and
    Patchy Fog

  • Wednesday

    Wednesday: Rain and possibly a thunderstorm. High near 68. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 80%.

    High: 68 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain and possibly a thunderstorm. Low around 56. South wind around 7 mph. Chance of precipitation is 80%.

    Low: 56 °F

    Rain

  • Thursday

    Thursday: Rain and possibly a thunderstorm before noon, then a chance of rain and thunderstorms after noon. High near 71. Chance of precipitation is 80%.

    High: 71 °F

    Rain then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of rain, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.

    Low: 56 °F

    Chance Rain

  • Friday

    Friday: A chance of rain and thunderstorms before noon, then a slight chance of rain. Partly sunny, with a high near 79. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    T-storms then
    Slight Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.

    Low: 60 °F

    Chance
    T-storms then
    Rain Likely

Detailed Forecast

Tonight
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after 4am. Patchy fog between 4am and 5am. Low around 39. East wind 3 to 6 mph. Chance of precipitation is 80%.
Tuesday
Rain before noon, then a chance of rain and thunderstorms between noon and 4pm, then rain likely and possibly a thunderstorm after 4pm. High near 62. Southeast wind 3 to 5 mph. Chance of precipitation is 90%.
Tuesday Night
Rain likely, then rain and possibly a thunderstorm after midnight. Patchy fog between 1am and 4am. Low around 52. East wind 5 to 7 mph. Chance of precipitation is 80%.
Wednesday
Rain and possibly a thunderstorm. High near 68. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 80%.
Wednesday Night
Rain and possibly a thunderstorm. Low around 56. South wind around 7 mph. Chance of precipitation is 80%.
Thursday
Rain and possibly a thunderstorm before noon, then a chance of rain and thunderstorms after noon. High near 71. Chance of precipitation is 80%.
Thursday Night
A chance of rain, with thunderstorms also possible after midnight. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.
Friday
A chance of rain and thunderstorms before noon, then a slight chance of rain. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Friday Night
A chance of rain and thunderstorms, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Saturday
Rain and possibly a thunderstorm before noon, then a chance of rain and thunderstorms after noon. High near 69. Chance of precipitation is 80%.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 48.
Sunday
A 20 percent chance of rain. Mostly cloudy, with a high near 64.
Sunday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 51.
Monday
A 30 percent chance of rain. Mostly sunny, with a high near 70.
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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:
4:56 pm CST Mar 2, 2026
Forecast Valid:
5pm CST Mar 2, 2026-6pm CDT Mar 9, 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