Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
34°F
1°C
| Humidity | 97% |
| Wind Speed | Calm |
| Barometer | 29.94 in (1013.8 mb) |
| Dewpoint | 33°F (1°C) |
| Visibility | 10.00 mi |
| Last update | 26 Feb 11:53 pm CST |
Extended Forecast for
Cahokia IL
Overnight

Low: 37 °F
Clear
Friday

High: 72 °F
Sunny
Friday Night

Low: 41 °F
Mostly Clear
Saturday
High: 67 °F
Mostly Sunny
then Slight
Chance RainSaturday Night

Low: 31 °F
Partly Cloudy
Sunday
High: 47 °F
Mostly Cloudy
then Slight
Chance RainSunday Night

Low: 33 °F
Rain/Snow
Monday
High: 45 °F
Chance
Rain/Snow
then Slight
Chance RainMonday Night

Low: 36 °F
Chance Rain
Detailed Forecast
Overnight
Clear, with a low around 37. Southwest wind around 6 mph.
Friday
Sunny, with a high near 72. Southwest wind 5 to 14 mph, with gusts as high as 24 mph.
Friday Night
Mostly clear, with a low around 41. Southwest wind 5 to 7 mph becoming light and variable after midnight.
Saturday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 67. Light and variable wind becoming south 5 to 7 mph in the morning.
Saturday Night
Partly cloudy, with a low around 31. North wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 47.
Sunday Night
Rain and snow. Low around 33. Chance of precipitation is 80%.
Monday
A chance of rain and snow before noon, then a slight chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 30%.
Monday Night
A 50 percent chance of rain. Cloudy, with a low around 36.
Tuesday
Rain. High near 54. Chance of precipitation is 80%.
Tuesday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 43. Chance of precipitation is 70%.
Wednesday
Rain likely. Cloudy, with a high near 63. Chance of precipitation is 60%.
Wednesday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 52. Chance of precipitation is 70%.
Thursday
Rain likely. Partly sunny, with a high near 69. Chance of precipitation is 60%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Cahokia IL
38.57°N 90.18°W (Elev. 407 ft)
38.57°N 90.18°W (Elev. 407 ft)
12:26 am CST Feb 27, 2026
12am CST Feb 27, 2026-6pm CST Mar 5, 2026


