National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

73°F

23°C

Humidity 96%
Wind Speed S 6 mph
Barometer 30.00 in (1015.5 mb)
Dewpoint 72°F (22°C)
Visibility 7.00 mi
Last update 15 Oct 10:53 am CDT
Extended Forecast for

Lovejoy IL

  • Today

    Today: Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 81. South wind around 9 mph. Chance of precipitation is 90%.

    High: 81 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 4am. Increasing clouds, with a low around 49. Northwest wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.

    Low: 49 °F

    Showers
    Likely then
    Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers after 4pm. Partly sunny, with a high near 57. Northwest wind around 17 mph, with gusts as high as 28 mph.

    High: 57 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 40. North wind 8 to 16 mph, with gusts as high as 24 mph.

    Low: 40 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 61. North wind around 5 mph becoming calm in the afternoon.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 39.

    Low: 39 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 73.

    High: 73 °F

    Mostly Sunny

Detailed Forecast

Today
Showers and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 81. South wind around 9 mph. Chance of precipitation is 90%.
Tonight
Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 4am. Increasing clouds, with a low around 49. Northwest wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%.
Friday
A 20 percent chance of showers after 4pm. Partly sunny, with a high near 57. Northwest wind around 17 mph, with gusts as high as 28 mph.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 40. North wind 8 to 16 mph, with gusts as high as 24 mph.
Saturday
Sunny, with a high near 61. North wind around 5 mph becoming calm in the afternoon.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 42.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 45.
Tuesday
Sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 48.
Wednesday
Sunny, with a high near 79.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lovejoy IL
 38.66°N 90.17°W (Elev. 404 ft)
Last Update:
11:21 am CDT Oct 15, 2026
Forecast Valid:
11am CDT Oct 15, 2026-6pm CDT Oct 21, 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