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.

Fair

76°F

24°C

Humidity 79%
Wind Speed NW 6 mph
Barometer 30.04 in (1016.9 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index77°F (25°C)
Last update 14 Oct 4:53 pm CDT
Extended Forecast for

Lovejoy IL

  • This Afternoon

    This Afternoon: A 30 percent chance of rain. Partly sunny, with a high near 77. Light northwest wind.

    High: 77 °F

    Chance Rain

  • Tonight

    Tonight: A slight chance of rain, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 40%.

    Low: 68 °F

    Slight Chance
    Rain then
    Chance
    T-storms

  • Thursday

    Thursday: Showers and possibly a thunderstorm, mainly before 11am, then a chance of showers and thunderstorms after 11am. High near 84. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 80%.

    High: 84 °F

    Showers then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am. Mostly cloudy, with a low around 51. West wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 51 °F

    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, with a high near 57. Northwest wind around 18 mph, with gusts as high as 30 mph.

    High: 57 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 63.

    High: 63 °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

Detailed Forecast

This Afternoon
A 30 percent chance of rain. Partly sunny, with a high near 77. Light northwest wind.
Tonight
A slight chance of rain, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. Light and variable wind. Chance of precipitation is 40%.
Thursday
Showers and possibly a thunderstorm, mainly before 11am, then a chance of showers and thunderstorms after 11am. High near 84. Light and variable wind becoming south 5 to 8 mph in the morning. Chance of precipitation is 80%.
Thursday Night
A chance of showers and thunderstorms before 1am, then a chance of showers between 1am and 4am. Mostly cloudy, with a low around 51. West wind 8 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Friday
Mostly cloudy, with a high near 57. Northwest wind around 18 mph, with gusts as high as 30 mph.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Sunny, with a high near 63.
Saturday Night
Clear, with a low around 39.
Sunday
Sunny, with a high near 68.
Sunday Night
Mostly clear, with a low around 44.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 47.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Mostly clear, with a low around 52.
Wednesday
Sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lovejoy IL
 38.66°N 90.17°W (Elev. 404 ft)
Last Update:
4:46 pm CDT Oct 14, 2026
Forecast Valid:
5pm CDT Oct 14, 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