Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
39°F
4°C
| Humidity | 96% |
| Wind Speed | Calm |
| Barometer | 30.47 in (1031.8 mb) |
| Dewpoint | 38°F (3°C) |
| Visibility | 10.00 mi |
| Last update | 18 Oct 3:53 am CDT |
Extended Forecast for
Cahokia IL
Frost Advisory until October 18, 09:00am
NOW until 9:00am Sun
Frost Advisory
Overnight
Low: 36 °F
Patchy Fog
Sunday
High: 70 °F
Patchy Frost
and Patchy
Fog then
SunnySunday Night
Low: 41 °F
Clear
Monday
High: 73 °F
Sunny
Monday Night
Low: 42 °F
Mostly Clear
Tuesday
High: 74 °F
Sunny
Tuesday Night
Low: 45 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Detailed Forecast
Overnight
Patchy fog after 5am. Otherwise, clear, with a low around 36. Calm wind.
Sunday
Patchy fog before 9am. Patchy frost before 8am. Otherwise, sunny, with a high near 70. Calm wind becoming south around 6 mph in the morning.
Sunday Night
Clear, with a low around 41. Light and variable wind.
Monday
Sunny, with a high near 73. Calm wind.
Monday Night
Mostly clear, with a low around 42. Calm wind.
Tuesday
Sunny, with a high near 74.
Tuesday Night
Mostly clear, with a low around 45.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Clear, with a low around 48.
Thursday
Sunny, with a high near 81.
Thursday Night
Clear, with a low around 48.
Friday
Sunny, with a high near 81.
Friday Night
Mostly clear, with a low around 50.
Saturday
Mostly sunny, with a high near 81.
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)
3:16 am CDT Oct 18, 2026
4am CDT Oct 18, 2026-6pm CDT Oct 24, 2026
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