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

51°F

11°C

Humidity 89%
Wind Speed S 3 mph
Barometer 30.05 in (1017.3 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 10 Oct 5:53 am CDT
Extended Forecast for

Lovejoy IL

  • Today

    Today: Mostly cloudy, with a high near 83. Calm wind becoming southeast around 6 mph in the afternoon.

    High: 83 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. East wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Mostly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 88. Light and variable wind.

    High: 88 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 66. Light and variable wind becoming south around 5 mph in the evening.

    Low: 66 °F

    Mostly Clear

  • Columbus Day

    Columbus Day: Sunny, with a high near 95. Southwest wind 6 to 11 mph.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 72.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 66.

    Low: 66 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 82. Chance of precipitation is 60%.

    High: 82 °F

    Showers
    Likely

Detailed Forecast

Today
Mostly cloudy, with a high near 83. Calm wind becoming southeast around 6 mph in the afternoon.
Tonight
Mostly cloudy, with a low around 58. East wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 88. Light and variable wind.
Sunday Night
Mostly clear, with a low around 66. Light and variable wind becoming south around 5 mph in the evening.
Columbus Day
Sunny, with a high near 95. Southwest wind 6 to 11 mph.
Monday Night
Mostly clear, with a low around 72.
Tuesday
Sunny, with a high near 92.
Tuesday Night
A 40 percent chance of showers and thunderstorms, mainly after 1am. Mostly clear, with a low around 66.
Wednesday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 82. Chance of precipitation is 60%.
Wednesday Night
A chance of showers, with thunderstorms also possible after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Thursday
Showers and thunderstorms likely. Partly sunny, with a high near 80. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of showers. Partly cloudy, with a low around 57.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 72.
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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:
5:16 am CDT Oct 10, 2026
Forecast Valid:
6am CDT Oct 10, 2026-6pm CDT Oct 16, 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