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

70°F

21°C

Humidity 76%
Wind Speed S 16 G 29 mph
Barometer 29.79 in (1008.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 2 Apr 8:53 am CDT
Extended Forecast for

Smithton IL

Wind Advisory April 2, 12:00pm until April 2, 07:00pm
Click here for hazard details and duration
Wind Advisory

  • Today

    Today: Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then showers and thunderstorms likely after 4pm. High near 76. Breezy, with a south wind 22 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 80%.

    High: 76 °F

    Breezy.
    Slight Chance
    Showers then
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Southwest wind 8 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after 8am. Mostly cloudy, with a high near 82. South wind 6 to 16 mph, with gusts as high as 25 mph.

    High: 82 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 59. South wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.

    Low: 59 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 64. West wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    High: 64 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

Detailed Forecast

Today
Showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 4pm, then showers and thunderstorms likely after 4pm. High near 76. Breezy, with a south wind 22 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 80%.
Tonight
A chance of showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Southwest wind 8 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 8am. Mostly cloudy, with a high near 82. South wind 6 to 16 mph, with gusts as high as 25 mph.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 59. South wind 11 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 64. West wind 10 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
Sunny, with a high near 59.
Sunday Night
Clear, with a low around 38.
Monday
Sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Mostly sunny, with a high near 69.
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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:
5:46 am CDT Apr 2, 2026
Forecast Valid:
9am CDT Apr 2, 2026-6pm CDT Apr 8, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation