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Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Overcast
31°F
-1°C
| Humidity | 64% |
| Wind Speed | Calm |
| Barometer | 30.21 in (1023.4 mb) |
| Dewpoint | 20°F (-7°C) |
| Visibility | 10.00 mi |
| Last update | 2 Feb 8:53 am CST |
Extended Forecast for
Collinsville IL
Today
High: 37 °F
Mostly Cloudy
Tonight
Low: 27 °F
Cloudy
Tuesday
High: 34 °F
Chance Snow
then Mostly
CloudyTuesday Night
Low: 16 °F
Partly Cloudy
Wednesday
High: 29 °F
Mostly Sunny
Wednesday Night
Low: 14 °F
Partly Cloudy
Thursday
High: 38 °F
Mostly Sunny
Thursday Night
Low: 32 °F
Mostly Clear
Friday
High: 44 °F
Mostly Sunny
Detailed Forecast
Today
Mostly cloudy, with a high near 37. West wind around 5 mph becoming calm in the afternoon.
Tonight
Cloudy, with a low around 27. East wind 3 to 7 mph.
Tuesday
A 30 percent chance of snow, mainly before 8am. Mostly cloudy, with a high near 34. Light and variable wind becoming north 5 to 9 mph in the morning.
Tuesday Night
Partly cloudy, with a low around 16. North wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 29. Northwest wind 3 to 6 mph.
Wednesday Night
Partly cloudy, with a low around 14.
Thursday
Mostly sunny, with a high near 38.
Thursday Night
Mostly clear, with a low around 32.
Friday
Mostly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Sunny, with a high near 36.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
Mostly sunny, with a high near 41.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Collinsville IL
38.7°N 90°W (Elev. 499 ft)
38.7°N 90°W (Elev. 499 ft)
8:06 am CST Feb 2, 2026
9am CST Feb 2, 2026-6pm CST Feb 8, 2026
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