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Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
22°F
-6°C
| Humidity | 85% |
| Wind Speed | S 6 mph |
| Barometer | 30.39 in (1029.5 mb) |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 14°F (-10°C) |
| Last update | 12 Jan 1:53 am CST |
Extended Forecast for
Cahokia IL
Overnight
Low: 23 °F
Clear
Monday
High: 55 °F
Sunny
Monday Night
Low: 34 °F
Mostly Clear
Tuesday
High: 62 °F
Increasing
CloudsTuesday Night
Low: 39 °F
Chance
Showers then
Mostly CloudyWednesday
High: 44 °F
Mostly Cloudy
Wednesday Night
Low: 18 °F
Partly Cloudy
Thursday
High: 33 °F
Mostly Sunny
Thursday Night
Low: 27 °F
Mostly Cloudy
Detailed Forecast
Overnight
Clear, with a low around 23. South wind 3 to 6 mph.
Monday
Sunny, with a high near 55. Southwest wind 6 to 9 mph.
Monday Night
Mostly clear, with a low around 34. Southwest wind 5 to 7 mph.
Tuesday
Increasing clouds, with a high near 62. West wind 7 to 14 mph, with gusts as high as 26 mph.
Tuesday Night
A 30 percent chance of showers before midnight. Mostly cloudy, with a low around 39. West wind 6 to 8 mph.
Wednesday
Mostly cloudy, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 18.
Thursday
Mostly sunny, with a high near 33.
Thursday Night
Mostly cloudy, with a low around 27.
Friday
A slight chance of rain and snow showers after noon. Partly sunny, with a high near 44. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 21.
Saturday
Mostly cloudy, with a high near 31.
Saturday Night
Partly cloudy, with a low around 12.
Sunday
Sunny, with a high near 31.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Cahokia IL
38.57°N 90.18°W (Elev. 407 ft)
38.57°N 90.18°W (Elev. 407 ft)
2:41 am CST Jan 12, 2026
2am CST Jan 12, 2026-6pm CST Jan 18, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
