Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
45°F
7°C
| Humidity | 90% |
| Wind Speed | Calm |
| Barometer | 30.30 in (1026.1 mb) |
| Dewpoint | 42°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 3 Nov 6:53 pm CST |
Extended Forecast for
Collinsville IL
Tonight
Low: 41 °F
Mostly Clear
Tuesday
High: 71 °F
Sunny
Tuesday Night
Low: 52 °F
Partly Cloudy
Wednesday
High: 71 °F
Sunny
Wednesday Night
Low: 41 °F
Clear
Thursday
High: 66 °F
Sunny
Thursday Night
Low: 55 °F
Mostly Cloudy
then Chance
RainFriday
High: 69 °F
Slight Chance
Rain then
SunnyFriday Night
Low: 42 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly clear, with a low around 41. Calm wind becoming southeast around 5 mph after midnight.
Tuesday
Sunny, with a high near 71. South wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
Partly cloudy, with a low around 52. Southwest wind 9 to 14 mph, with gusts as high as 24 mph.
Wednesday
Sunny, with a high near 71. Southwest wind 7 to 11 mph becoming north in the afternoon.
Wednesday Night
Clear, with a low around 41. North wind around 6 mph becoming light and variable.
Thursday
Sunny, with a high near 66.
Thursday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 55.
Friday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 42.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 42.
Sunday
Sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 31.
Monday
Sunny, with a high near 50.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Collinsville IL
38.66°N 89.97°W (Elev. 548 ft)
38.66°N 89.97°W (Elev. 548 ft)
5:06 pm CST Nov 3, 2025
7pm CST Nov 3, 2025-6pm CST Nov 10, 2025
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