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

83°F

28°C

Humidity 61%
Wind Speed N 14 mph
Barometer 29.96 in (1014.0 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index86°F (30°C)
Last update 25 Jun 1:53 pm CDT
Extended Forecast for

4 Miles NNW Lebanon IL

Flood Watch June 25, 02:20pm until June 26, 07:00am
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch June 25, 02:20pm until June 26, 07:00am

    NOW until 7:00am Fri

    Flood Watch

  • This Afternoon

    High: 87 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms, mainly after midnight. Low around 69. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 90%.

    Low: 69 °F

    Chance
    T-storms then
    T-storms

  • Friday

    Friday: Showers and thunderstorms, mainly before 5pm. High near 81. Southeast wind 7 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.

    High: 81 °F

    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly before midnight. Increasing clouds, with a low around 68. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 68 °F

    T-storms
    Likely then
    Chance
    T-storms

  • Saturday

    Saturday: A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. Light and variable wind. Chance of precipitation is 30%.

    High: 85 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.

    Low: 72 °F

    Chance
    T-storms

  • Sunday

    Sunday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

This Afternoon
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Light and variable wind.
Tonight
Showers and thunderstorms, mainly after midnight. Low around 69. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 90%.
Friday
Showers and thunderstorms, mainly before 5pm. High near 81. Southeast wind 7 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 90%.
Friday Night
Showers and thunderstorms likely, mainly before midnight. Increasing clouds, with a low around 68. Southwest wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 60%.
Saturday
A slight chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 85. Light and variable wind. Chance of precipitation is 30%.
Saturday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Sunday
Sunny, with a high near 93.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 95.
Monday Night
Clear, with a low around 76.
Tuesday
Sunny and hot, with a high near 97.
Tuesday Night
Clear, with a low around 76.
Wednesday
Sunny, with a high near 96.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NNW Lebanon IL
 38.65°N 89.83°W (Elev. 476 ft)
Last Update:
1:36 pm CDT Jun 25, 2026
Forecast Valid:
2pm CDT Jun 25, 2026-6pm CDT Jul 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