Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Overcast
35°F
2°C
| Humidity | 50% |
| Wind Speed | S 8 mph |
| Barometer | 30.05 in (1017.8 mb) |
| Dewpoint | 18°F (-8°C) |
| Visibility | 10.00 mi |
| Wind Chill | 28°F (-2°C) |
| Last update | 18 Mar 3:53 am CDT |
Extended Forecast for
4 Miles SW Waterloo IL
Overnight

Low: 31 °F
Chance
FlurriesWednesday

High: 65 °F
Becoming
SunnyWednesday Night

Low: 44 °F
Mostly Cloudy
Thursday

High: 72 °F
Decreasing
CloudsThursday Night

Low: 48 °F
Mostly Clear
Friday

High: 78 °F
Mostly Sunny
Friday Night

Low: 54 °F
Partly Cloudy
Saturday

High: 79 °F
Sunny
Saturday Night

Low: 55 °F
Clear
Detailed Forecast
Overnight
A chance of flurries. Cloudy, with a low around 31. South wind around 14 mph, with gusts as high as 22 mph.
Wednesday
Cloudy through mid morning, then gradual clearing, with a high near 65. South wind 7 to 11 mph becoming west in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
Mostly cloudy, with a low around 44. Light and variable wind becoming south around 5 mph after midnight.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 72. Southwest wind around 6 mph becoming northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 48. North wind around 5 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Sunny, with a high near 79.
Saturday Night
Clear, with a low around 55.
Sunday
Sunny, with a high near 80.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Partly sunny, with a high near 53.
Monday Night
Mostly cloudy, with a low around 35.
Tuesday
Partly sunny, with a high near 58.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles SW Waterloo IL
38.29°N 90.19°W (Elev. 633 ft)
38.29°N 90.19°W (Elev. 633 ft)
1:26 am CDT Mar 18, 2026
4am CDT Mar 18, 2026-6pm CDT Mar 24, 2026


