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.

Light Rain

68°F

20°C

Humidity 84%
Wind Speed S 10 G 17 mph
Barometer 29.91 in (1012.5 mb)
Dewpoint 63°F (17°C)
Visibility 6.00 mi
Last update 15 Apr 1:53 pm CDT
Extended Forecast for

5 Miles SW Smithton IL

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 81. Southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    High: 81 °F

    Showers
    Likely

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a slight chance of showers. Low around 62. Southwest wind 8 to 10 mph. Chance of precipitation is 90%.

    Low: 62 °F

    Showers

  • Thursday

    Thursday: A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 82. Southwest wind 6 to 9 mph. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 58. South wind 3 to 5 mph.

    Low: 58 °F

    Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 5 to 14 mph, with gusts as high as 23 mph.

    High: 85 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.

    Low: 52 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: A chance of showers and thunderstorms. Partly sunny, with a high near 64. Chance of precipitation is 50%.

    High: 64 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Cloudy, with a high near 81. Southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms before 4am, then a slight chance of showers. Low around 62. Southwest wind 8 to 10 mph. Chance of precipitation is 90%.
Thursday
A slight chance of showers before 8am, then a slight chance of showers and thunderstorms after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 82. Southwest wind 6 to 9 mph. Chance of precipitation is 20%.
Thursday Night
A 30 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 58. South wind 3 to 5 mph.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 85. South wind 5 to 14 mph, with gusts as high as 23 mph.
Friday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 64. Chance of precipitation is 50%.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Sunny, with a high near 65.
Sunday Night
Clear, with a low around 41.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 76.
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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:
1:26 pm CDT Apr 15, 2026
Forecast Valid:
2pm CDT Apr 15, 2026-6pm CDT Apr 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation