Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
70°F
21°C
| Humidity | 87% |
| Wind Speed | Calm |
| Barometer | 30.02 in (1016.1 mb) |
| Dewpoint | 66°F (19°C) |
| Visibility | 10.00 mi |
| Last update | 19 Jun 11:53 pm CDT |
Extended Forecast for
O'Fallon IL
Extreme Heat Watch June 21, 12:00pm until June 24, 09:00pm
Tonight
Low: 66 °F
Mostly Clear
Friday
High: 91 °F
Sunny
Friday Night
Low: 74 °F
Mostly Clear
Saturday
High: 95 °F
Sunny
Saturday Night
Low: 76 °F
Mostly Clear
Sunday
High: 95 °F
Sunny
Sunday Night
Low: 76 °F
Mostly Clear
Monday
High: 95 °F
Sunny
Monday Night
Low: 76 °F
Mostly Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 66. Light south wind.
Friday
Sunny, with a high near 91. South wind 5 to 10 mph.
Friday Night
Mostly clear, with a low around 74. South wind 9 to 11 mph.
Saturday
Sunny, with a high near 95. Heat index values as high as 105. South wind 10 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Mostly clear, with a low around 76. South wind 7 to 10 mph.
Sunday
Sunny, with a high near 95.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Sunny, with a high near 94.
Tuesday Night
Partly cloudy, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 93.
Additional Forecasts and Information
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Point Forecast:
O'Fallon IL
38.59°N 89.92°W (Elev. 551 ft)
38.59°N 89.92°W (Elev. 551 ft)
10:36 pm CDT Jun 19, 2025
11pm CDT Jun 19, 2025-6pm CDT Jun 26, 2025
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