Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
87°F
31°C
| Humidity | 21% |
| Wind Speed | W 9 G 21 mph |
| Barometer | 29.88 in (1011.4 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Heat Index | 84°F (29°C) |
| Last update | 20 Mar 1:53 pm CDT |
Extended Forecast for
Cahokia IL
This Afternoon
High: 86 °F
Sunny
Tonight
Low: 53 °F
Partly Cloudy
Saturday
High: 83 °F
Sunny
Saturday Night
Low: 63 °F
Mostly Clear
Sunday
High: 88 °F
Mostly Sunny
Sunday Night
Low: 41 °F
Partly Cloudy
Monday
High: 59 °F
Mostly Sunny
Monday Night
Low: 41 °F
Partly Cloudy
Tuesday
High: 61 °F
Partly Sunny
Detailed Forecast
This Afternoon
Sunny, with a high near 86. West wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a low around 53. West wind around 6 mph becoming light and variable in the evening.
Saturday
Sunny, with a high near 83. Calm wind becoming southwest around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 63. South wind 5 to 7 mph.
Sunday
Mostly sunny, with a high near 88. South wind 7 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 41.
Monday
Mostly sunny, with a high near 59.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Partly sunny, with a high near 61.
Tuesday Night
A 20 percent chance of rain and thunderstorms after 1am. Partly cloudy, with a low around 44.
Wednesday
Partly sunny, with a high near 68.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
A 20 percent chance of rain. Sunny, with a high near 80.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
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)
1:56 pm CDT Mar 20, 2026
2pm CDT Mar 20, 2026-6pm CDT Mar 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
