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Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
80°F
27°C
| Humidity | 41% |
| Wind Speed | Calm |
| Barometer | 30.15 in (1020.5 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 23 Jun 6:53 pm CDT |
Extended Forecast for
3 Miles SE Belleville IL
Tonight
Low: 63 °F
Partly Cloudy
Wednesday
High: 84 °F
Mostly Sunny
then Chance
T-stormsWednesday Night
Low: 67 °F
Partly Cloudy
then Slight
Chance
T-stormsThursday
High: 86 °F
Chance
T-storms then
Heavy RainThursday Night
Low: 68 °F
T-storms
Friday
High: 84 °F
T-storms
Friday Night
Low: 70 °F
Showers
LikelySaturday
High: 89 °F
Chance
ShowersSaturday Night
Low: 73 °F
Slight Chance
T-storms
Detailed Forecast
Tonight
Partly cloudy, with a low around 63. Light southeast wind.
Wednesday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. Light and variable wind becoming south 5 to 7 mph in the morning.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Southwest wind around 5 mph becoming calm in the evening.
Thursday
Showers and thunderstorms likely, mainly after 1pm. Some of the storms could produce heavy rainfall. Partly sunny, with a high near 86. Light south wind. Chance of precipitation is 70%.
Thursday Night
Showers and thunderstorms. Low around 68. East wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.
Friday
Showers and thunderstorms. High near 84. Chance of precipitation is 80%.
Friday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 70%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 89.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Sunday
Sunny, with a high near 94.
Sunday Night
Mostly clear, with a low around 75.
Monday
Sunny, with a high near 95.
Monday Night
Mostly clear, with a low around 77.
Tuesday
Sunny, with a high near 96.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SE Belleville IL
38.5°N 89.98°W (Elev. 495 ft)
38.5°N 89.98°W (Elev. 495 ft)
9:46 am CDT Jun 23, 2026
7pm CDT Jun 23, 2026-6pm CDT Jun 30, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
