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 and Breezy

23°F

-5°C

Humidity 53%
Wind Speed NW 23 G 35 mph
Barometer 30.51 in (1033.9 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill7°F (-14°C)
Last update 22 Feb 10:53 pm CST
Extended Forecast for

Lovejoy IL

  • Tonight

    Tonight: Partly cloudy, with a low around 16. Northwest wind around 14 mph, with gusts as high as 23 mph.

    Low: 16 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, then gradually becoming sunny, with a high near 34. Northwest wind 5 to 13 mph, with gusts as high as 21 mph.

    High: 34 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 22. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 22 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55. South wind 9 to 15 mph, with gusts as high as 25 mph.

    High: 55 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36. Southwest wind 5 to 9 mph becoming calm after midnight.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.

    Low: 37 °F

    Rain Likely

  • Thursday

    Thursday: A 30 percent chance of rain before noon. Mostly sunny, with a high near 53.

    High: 53 °F

    Chance Rain
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 30.

    Low: 30 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 16. Northwest wind around 14 mph, with gusts as high as 23 mph.
Monday
Partly sunny, then gradually becoming sunny, with a high near 34. Northwest wind 5 to 13 mph, with gusts as high as 21 mph.
Monday Night
Mostly clear, with a low around 22. Calm wind becoming south 5 to 7 mph after midnight.
Tuesday
Mostly cloudy, with a high near 55. South wind 9 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly cloudy, with a low around 36. Southwest wind 5 to 9 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 56.
Wednesday Night
A chance of rain, then rain likely and possibly a thunderstorm after midnight. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Thursday
A 30 percent chance of rain before noon. Mostly sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 30.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 39.
Saturday
Sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
A 20 percent chance of rain. Partly sunny, with a high near 51.
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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:
10:26 pm CST Feb 22, 2026
Forecast Valid:
11pm CST Feb 22, 2026-6pm CST Mar 1, 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