Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
62°F
17°C
| Humidity | 50% |
| Wind Speed | SW 7 mph |
| Barometer | 29.97 in (1015.0 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 27 Feb 10:53 am CST |
Extended Forecast for
Cahokia IL
This Afternoon

High: 75 °F
Sunny
Tonight

Low: 38 °F
Clear
Saturday
High: 68 °F
Sunny then
Slight Chance
RainSaturday Night

Low: 32 °F
Partly Cloudy
Sunday
High: 47 °F
Partly Sunny
then Slight
Chance RainSunday Night

Low: 33 °F
Rain/Snow
Monday

High: 45 °F
Chance Rain
Monday Night

Low: 36 °F
Chance Rain
Tuesday

High: 54 °F
Rain
Detailed Forecast
This Afternoon
Sunny, with a high near 75. Southwest wind 8 to 15 mph, with gusts as high as 24 mph.
Tonight
Clear, with a low around 38. Southwest wind 5 to 7 mph becoming light and variable.
Saturday
A slight chance of rain between 3pm and 5pm. Mostly sunny, with a high near 68. North wind 5 to 8 mph becoming south in the afternoon. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 32. South wind 6 to 10 mph becoming north after midnight. Winds could gust as high as 21 mph.
Sunday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 47. Northeast wind 8 to 10 mph.
Sunday Night
Rain and snow. Low around 33. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Monday
A 40 percent chance of rain, mainly before noon. Cloudy, with a high near 45.
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)
12:06 pm CST Feb 27, 2026
12pm CST Feb 27, 2026-6pm CST Mar 5, 2026



