Hazardous Weather Conditions
Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Mostly Cloudy
72°F
22°C
| Humidity | 50% |
| Wind Speed | S 5 mph |
| Barometer | 29.91 in (1012.6 mb) |
| Dewpoint | 52°F (11°C) |
| Visibility | 10.00 mi |
| Last update | 31 Mar 11:53 pm CDT |
Extended Forecast for
4 Miles SW Waterloo IL
Overnight

Low: 61 °F
Chance
T-stormsWednesday
High: 79 °F
Showers
Likely then
Chance
T-stormsWednesday Night

Low: 65 °F
Slight Chance
ShowersThursday
High: 77 °F
Breezy.
Chance
Showers then
ShowersThursday Night

Low: 61 °F
Showers
LikelyFriday
High: 81 °F
Chance
Showers then
Chance
T-stormsFriday Night
Low: 53 °F
Chance
T-storms then
ShowersSaturday

High: 65 °F
Showers
LikelySaturday Night

Low: 38 °F
Slight Chance
Showers
Detailed Forecast
Overnight
A 40 percent chance of showers and thunderstorms. Increasing clouds, with a low around 61. Southwest wind 6 to 8 mph.
Wednesday
Showers and thunderstorms likely before 4pm, then a chance of showers. Mostly cloudy, with a high near 79. Northeast wind 6 to 9 mph becoming south in the morning. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 65. South wind 10 to 16 mph, with gusts as high as 26 mph.
Thursday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 77. Breezy, with a south wind 18 to 22 mph, with gusts as high as 34 mph. Chance of precipitation is 80%.
Thursday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 61. South wind 9 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 1am. Low around 53. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 65. Chance of precipitation is 70%.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 38.
Sunday
Mostly sunny, with a high near 55.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 40.
Tuesday
Sunny, with a high near 68.
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)
9:56 pm CDT Mar 31, 2026
12am CDT Apr 1, 2026-6pm CDT Apr 7, 2026



