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.

Mostly Cloudy

62°F

17°C

Humidity 62%
Wind Speed E 6 mph
Barometer 30.36 in (1027.9 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 11 Apr 10:53 am CDT
Extended Forecast for

Smithton IL

  • Today

    Today: A 20 percent chance of showers after 3pm. Mostly sunny, with a high near 73. Southeast wind around 8 mph.

    High: 73 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 59. Southeast wind around 7 mph.

    Low: 59 °F

    Partly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm. Increasing clouds, with a high near 80. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.

    High: 80 °F

    Mostly Sunny
    then Slight
    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 13 to 15 mph, with gusts as high as 25 mph.

    Low: 65 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 83. South wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    High: 83 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers after 3pm. Mostly sunny, with a high near 73. Southeast wind around 8 mph.
Tonight
Partly cloudy, with a low around 59. Southeast wind around 7 mph.
Sunday
A 20 percent chance of showers after 1pm. Increasing clouds, with a high near 80. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 29 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65. South wind 13 to 15 mph, with gusts as high as 25 mph.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 83. South wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Monday Night
Partly cloudy, with a low around 67.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 84.
Wednesday Night
A chance of showers and thunderstorms, then showers likely after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 78. Chance of precipitation is 60%.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Friday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
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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:
8:26 am CDT Apr 11, 2026
Forecast Valid:
11am CDT Apr 11, 2026-6pm CDT Apr 17, 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