Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
59°F
15°C
| Humidity | 96% |
| Wind Speed | Calm |
| Barometer | 30.17 in (1021.2 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Last update | 4 Oct 5:53 am CDT |
Extended Forecast for
Collinsville IL
Today
High: 87 °F
Sunny
Tonight
Low: 59 °F
Clear
Sunday
High: 87 °F
Sunny
Sunday Night
Low: 63 °F
Mostly Clear
Monday
High: 87 °F
Chance
ShowersMonday Night
Low: 65 °F
Slight Chance
Showers then
Chance
T-stormsTuesday
High: 78 °F
Chance
T-stormsTuesday Night
Low: 54 °F
Mostly Cloudy
Wednesday
High: 74 °F
Sunny
Detailed Forecast
Today
Sunny, with a high near 87. Light south wind increasing to 5 to 10 mph in the morning.
Tonight
Clear, with a low around 59. South wind around 7 mph.
Sunday
Sunny, with a high near 87. South wind 6 to 14 mph.
Sunday Night
Mostly clear, with a low around 63. South wind 5 to 8 mph.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87. South wind 5 to 8 mph. Chance of precipitation is 40%.
Monday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 65. Chance of precipitation is 40%.
Tuesday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 78.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 49.
Thursday
Sunny, with a high near 74.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 77.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Collinsville IL
38.68°N 89.97°W (Elev. 502 ft)
38.68°N 89.97°W (Elev. 502 ft)
4:16 am CDT Oct 4, 2025
6am CDT Oct 4, 2025-6pm CDT Oct 10, 2025
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