Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
38°F
3°C
| Humidity | 93% |
| Wind Speed | Calm |
| Barometer | 29.98 in (1015.3 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 27 Feb 7:53 am CST |
Extended Forecast for
Cahokia IL
Today

High: 72 °F
Sunny
Tonight

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
Tuesday

High: 54 °F
Rain
Detailed Forecast
Today
Sunny, with a high near 72. Light south wind becoming southwest 10 to 15 mph in the morning. Winds could gust as high as 24 mph.
Tonight
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. East wind around 10 mph.
Sunday Night
Rain and snow. Low around 33. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
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, with thunderstorms also possible after midnight. 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)
8:31 am CST Feb 27, 2026
8am CST Feb 27, 2026-6pm CST Mar 5, 2026



