Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
82°F
28°C
| Humidity | 38% |
| Wind Speed | S 8 mph |
| Barometer | 29.88 in (1011.4 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Heat Index | 81°F (27°C) |
| Last update | 16 Apr 3:53 pm CDT |
Extended Forecast for
Cahokia IL
Tonight

Low: 60 °F
Mostly Clear
Friday

High: 86 °F
Slight Chance
T-stormsFriday Night
Low: 50 °F
Showers
Likely then
ShowersSaturday

High: 62 °F
Chance
ShowersSaturday Night

Low: 41 °F
Mostly Clear
Sunday

High: 67 °F
Sunny
Sunday Night

Low: 43 °F
Mostly Clear
Monday

High: 74 °F
Sunny
Monday Night

Low: 54 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 60. Light south wind.
Friday
A slight chance of showers and thunderstorms before 10am, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 86. South wind 5 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 11pm. Low around 50. South wind 10 to 13 mph becoming west after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 100%.
Saturday
A 50 percent chance of showers. Mostly cloudy, then gradually becoming sunny, with a high near 62. Northwest wind around 14 mph, with gusts as high as 24 mph.
Saturday Night
Mostly clear, with a low around 41. Northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 43.
Monday
Sunny, with a high near 74.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
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)
2:41 pm CDT Apr 16, 2026
4pm CDT Apr 16, 2026-6pm CDT Apr 23, 2026



