National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Mostly Cloudy

69°F

21°C

Humidity 96%
Wind Speed E 3 mph
Barometer 29.96 in (1014.2 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 26 Jun 6:53 am CDT
Extended Forecast for

Lebanon IL

Flood Watch June 26, 07:04am until June 26, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 26, 07:04am until June 26, 07:00pm

    NOW until 7:00pm Fri

    Flood Watch

  • Today

    High: 80 °F

    Showers then
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 68. East wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely then
    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 84. Calm wind.

    High: 84 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 7pm. Partly cloudy, with a low around 72. Southeast wind 3 to 5 mph.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Sunday

    Sunday: Sunny, with a high near 93. South wind 6 to 10 mph.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 95.

    High: 95 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Today
Showers and possibly a thunderstorm before 3pm, then showers and thunderstorms likely after 3pm. High near 80. Southeast wind 6 to 11 mph becoming southwest in the afternoon. Chance of precipitation is 90%.
Tonight
Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 68. East wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
A 20 percent chance of showers and thunderstorms after 4pm. Partly sunny, with a high near 84. Calm wind.
Saturday Night
A 40 percent chance of showers and thunderstorms, mainly after 7pm. Partly cloudy, with a low around 72. Southeast wind 3 to 5 mph.
Sunday
Sunny, with a high near 93. South wind 6 to 10 mph.
Sunday Night
Mostly clear, with a low around 74.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Clear, with a low around 76.
Wednesday
Sunny, with a high near 96.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lebanon IL
 38.61°N 89.81°W (Elev. 463 ft)
Last Update:
3:36 am CDT Jun 26, 2026
Forecast Valid:
7am CDT Jun 26, 2026-6pm CDT Jul 2, 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