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

44°F

7°C

Humidity 63%
Wind Speed NW 9 G 17 mph
Barometer 30.20 in (1022.7 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 5 Apr 2:53 am CDT
Extended Forecast for

Lebanon IL

  • Overnight

    Overnight: Mostly clear, with a low around 38. Northwest wind around 8 mph.

    Low: 38 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 57. Northwest wind 9 to 15 mph, with gusts as high as 22 mph.

    High: 57 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39. Northwest wind 5 to 7 mph becoming calm after midnight.

    Low: 39 °F

    Clear

  • Monday

    Monday: Increasing clouds, with a high near 62. Northwest wind 5 to 13 mph.

    High: 62 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. North wind around 8 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 52.

    High: 52 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53.

    Low: 53 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 38. Northwest wind around 8 mph.
Sunday
Sunny, with a high near 57. Northwest wind 9 to 15 mph, with gusts as high as 22 mph.
Sunday Night
Clear, with a low around 39. Northwest wind 5 to 7 mph becoming calm after midnight.
Monday
Increasing clouds, with a high near 62. Northwest wind 5 to 13 mph.
Monday Night
Mostly cloudy, with a low around 37. North wind around 8 mph.
Tuesday
Mostly cloudy, with a high near 52.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Mostly sunny, with a high near 72.
Wednesday Night
Partly cloudy, with a low around 53.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 74.
Thursday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 75.
Friday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lebanon IL
 38.61°N 89.81°W (Elev. 463 ft)
Last Update:
1:26 am CDT Apr 5, 2026
Forecast Valid:
3am CDT Apr 5, 2026-6pm CDT Apr 11, 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