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.

Fog/Mist

49°F

9°C

Humidity 90%
Wind Speed Calm
Barometer 30.20 in (1022.7 mb)
Dewpoint 46°F (8°C)
Visibility 6.00 mi
Last update 19 Nov 11:53 am CST
Extended Forecast for

Lebanon IL

  • This Afternoon

    This Afternoon: Cloudy, with a high near 53. Calm wind.

    High: 53 °F

    Cloudy

  • Tonight

    Tonight: A 20 percent chance of showers after 5am. Cloudy, with a low around 48. Calm wind becoming southeast around 5 mph.

    Low: 48 °F

    Cloudy then
    Slight Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 3pm. Cloudy, with a high near 59. Southeast wind 5 to 9 mph. Chance of precipitation is 50%.

    High: 59 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight, then rain after midnight. Low around 54. East wind around 6 mph becoming calm after midnight. Chance of precipitation is 80%.

    Low: 54 °F

    Showers

  • Friday

    Friday: Rain, with thunderstorms also possible after 3pm. High near 62. East wind 5 to 9 mph. Chance of precipitation is 90%.

    High: 62 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.

    Low: 48 °F

    Rain Likely
    then Slight
    Chance Rain

  • Saturday

    Saturday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Cloudy, with a high near 53. Calm wind.
Tonight
A 20 percent chance of showers after 5am. Cloudy, with a low around 48. Calm wind becoming southeast around 5 mph.
Thursday
A chance of showers, with thunderstorms also possible after 3pm. Cloudy, with a high near 59. Southeast wind 5 to 9 mph. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight, then rain after midnight. Low around 54. East wind around 6 mph becoming calm after midnight. Chance of precipitation is 80%.
Friday
Rain, with thunderstorms also possible after 3pm. High near 62. East wind 5 to 9 mph. Chance of precipitation is 90%.
Friday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 60%.
Saturday
Mostly sunny, with a high near 62.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Mostly sunny, with a high near 63.
Sunday Night
Partly cloudy, with a low around 43.
Monday
A 20 percent chance of rain. Partly sunny, with a high near 61.
Monday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 44.
Tuesday
A 40 percent chance of rain. Partly sunny, with a high near 57.
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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:
11:06 am CST Nov 19, 2025
Forecast Valid:
12pm CST Nov 19, 2025-6pm CST Nov 25, 2025
 
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