
Areas of Showers and Thunderstorms to Start the Work Week
Areas of rain and thunderstorms are forecast Monday across the central and eastern states. Some mixed rain and snow is possible in the high Sierra Mountains. Heavy to excessive rain may bring flooding in the central Appalachians. Read More >
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Thunderstorm in Vicinity Rain
77°F
25°C
| Humidity | 82% |
| Wind Speed | N 10 mph |
| Barometer | 29.89 in (1011.7 mb) |
| Dewpoint | 71°F (22°C) |
| Visibility | 10.00 mi |
| Heat Index | 79°F (26°C) |
| Last update | 20 Sep 8:53 pm CDT |
Extended Forecast for
Lebanon IL
Tonight

Low: 67 °F
Showers
LikelyMonday
High: 76 °F
Chance
Showers then
Mostly CloudyMonday Night

Low: 61 °F
Mostly Cloudy
Tuesday

High: 74 °F
Partly Sunny
Tuesday Night

Low: 55 °F
Partly Cloudy
Wednesday

High: 75 °F
Mostly Sunny
Wednesday Night

Low: 54 °F
Mostly Clear
Thursday

High: 76 °F
Mostly Sunny
Thursday Night

Low: 56 °F
Partly Cloudy
Detailed Forecast
Tonight
A chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 3am, then a chance of showers and thunderstorms after 3am. Cloudy, with a low around 67. Northeast wind 5 to 9 mph. Chance of precipitation is 70%.
Monday
A chance of showers and thunderstorms before 10am, then a slight chance of showers between 10am and 11am. Mostly cloudy, with a high near 76. North wind 3 to 8 mph. Chance of precipitation is 30%.
Monday Night
Mostly cloudy, with a low around 61. Northeast wind 5 to 9 mph.
Tuesday
Partly sunny, with a high near 74. Northeast wind 7 to 11 mph.
Tuesday Night
Partly cloudy, with a low around 55. North wind 5 to 11 mph.
Wednesday
Mostly sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 56.
Friday
Mostly sunny, with a high near 77.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 57.
Saturday
A 20 percent chance of showers. Mostly cloudy, with a high near 79.
Saturday Night
Mostly cloudy, with a low around 58.
Sunday
Partly sunny, with a high near 84.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Lebanon IL
38.61°N 89.81°W (Elev. 463 ft)
38.61°N 89.81°W (Elev. 463 ft)
8:21 pm CDT Sep 20, 2026
9pm CDT Sep 20, 2026-6pm CDT Sep 27, 2026


