Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
78°F
26°C
| Humidity | 67% |
| Wind Speed | W 6 mph |
| Barometer | 30.11 in (1019.2 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 6 Oct 10:53 am CDT |
Extended Forecast for
O'Fallon IL
Today
High: 83 °F
Chance
T-stormsTonight
Low: 67 °F
Chance
T-storms then
Mostly CloudyTuesday
High: 77 °F
Chance
ShowersTuesday Night
Low: 52 °F
Partly Cloudy
Wednesday
High: 74 °F
Sunny
Wednesday Night
Low: 46 °F
Clear
Thursday
High: 73 °F
Sunny
Thursday Night
Low: 45 °F
Mostly Clear
Friday
High: 76 °F
Sunny
Detailed Forecast
Today
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 83. South wind 7 to 9 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly cloudy, with a low around 67. South wind 3 to 7 mph.
Tuesday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers. Mostly cloudy, with a high near 77. Light northwest wind becoming north 6 to 11 mph in the morning. Chance of precipitation is 30%.
Tuesday Night
Partly cloudy, with a low around 52. North wind 7 to 10 mph.
Wednesday
Sunny, with a high near 74. Northeast wind 7 to 11 mph.
Wednesday Night
Clear, with a low around 46.
Thursday
Sunny, with a high near 73.
Thursday Night
Mostly clear, with a low around 45.
Friday
Sunny, with a high near 76.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Sunny, with a high near 80.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 82.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
O'Fallon IL
38.59°N 89.92°W (Elev. 551 ft)
38.59°N 89.92°W (Elev. 551 ft)
9:51 am CDT Oct 6, 2025
11am CDT Oct 6, 2025-6pm CDT Oct 12, 2025
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