Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Light Rain

69°F

21°C

Humidity 78%
Wind Speed SW 18 G 38 mph
Barometer 29.75 in (1006.9 mb)
Dewpoint 62°F (17°C)
Visibility 9.00 mi
Last update 17 Apr 10:53 pm CDT
Extended Forecast for

4 Miles WSW Smithton IL

Tornado Watch April 17, 10:59pm until April 18, 12:00am
Click here for hazard details and duration
Tornado Watch
  •  
    Tornado Watch April 17, 10:59pm until April 18, 12:00am

    NOW until 12:00am Sat

    Tornado Watch

  • Tonight

    Low: 48 °F

    Severe
    Thunderstorms
    then Showers

  • Saturday

    Saturday: Showers likely, mainly before 8am.  Cloudy through mid morning, then gradual clearing, with a high near 59. Northwest wind 15 to 17 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%.

    High: 59 °F

    Showers
    Likely then
    Mostly Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39. Northwest wind 5 to 10 mph becoming light and variable  after midnight.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Light southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 21 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. Northwest wind around 6 mph becoming light and variable  after midnight.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 50.

    Low: 50 °F

    Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers and thunderstorms likely before midnight, then showers and possibly a thunderstorm between midnight and 4am, then showers after 4am. Some of the storms could be severe. Low around 48. South wind 5 to 13 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 100%.
Saturday
Showers likely, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 59. Northwest wind 15 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Saturday Night
Clear, with a low around 39. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Sunday
Sunny, with a high near 67. Light southwest wind becoming west 8 to 13 mph in the morning. Winds could gust as high as 21 mph.
Sunday Night
Mostly clear, with a low around 41. Northwest wind around 6 mph becoming light and variable after midnight.
Monday
Sunny, with a high near 69.
Monday Night
Clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 57.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 83.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 79.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WSW Smithton IL
 38.37°N 90.04°W (Elev. 499 ft)
10:51 pm CDT Apr 17, 2026
10pm CDT Apr 17, 2026-6pm CDT Apr 24, 2026
 
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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