Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
46°F
8°C
| Humidity | 50% |
| Wind Speed | N 7 mph |
| Barometer | 30.03 in (1016.7 mb) |
| Dewpoint | 28°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 42°F (6°C) |
| Last update | 28 Feb 2:53 am CST |
Extended Forecast for
2 Miles SE Cahokia IL
Overnight

Low: 38 °F
Mostly Clear
Saturday
High: 64 °F
Mostly Sunny
then Chance
RainSaturday Night
Low: 31 °F
Slight Chance
Rain then
Mostly ClearSunday

High: 46 °F
Increasing
CloudsSunday Night
Low: 32 °F
Snow Likely
then
Rain/Snow
LikelyMonday
High: 44 °F
Chance
Rain/Snow
then CloudyMonday Night

Low: 38 °F
Rain
Tuesday

High: 60 °F
Rain
Tuesday Night

Low: 50 °F
Rain
Detailed Forecast
Overnight
Mostly clear, with a low around 38. North wind around 6 mph.
Saturday
A 30 percent chance of rain, mainly after 4pm. Mostly sunny, with a high near 64. Light and variable wind becoming east 5 to 8 mph in the morning.
Saturday Night
A 20 percent chance of rain before 7pm. Partly cloudy, with a low around 31. South wind 5 to 10 mph becoming north after midnight.
Sunday
Increasing clouds, with a high near 46. Northeast wind around 10 mph.
Sunday Night
Snow likely before 3am, then rain and snow likely. Cloudy, with a low around 32. East wind around 10 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Monday
A chance of rain and snow before 9am, then a chance of rain between 9am and noon. Cloudy, with a high near 44. Chance of precipitation is 40%.
Monday Night
Rain. Low around 38. Chance of precipitation is 80%.
Tuesday
Rain and possibly a thunderstorm. High near 60. Chance of precipitation is 90%.
Tuesday Night
Rain, with thunderstorms also possible after midnight. Low around 50. Chance of precipitation is 80%.
Wednesday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 66. Chance of precipitation is 70%.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Thursday
A 50 percent chance of rain. Partly sunny, with a high near 70.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 56.
Friday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
2 Miles SE Cahokia IL
38.53°N 90.15°W (Elev. 499 ft)
38.53°N 90.15°W (Elev. 499 ft)
1:36 am CST Feb 28, 2026
3am CST Feb 28, 2026-6pm CST Mar 6, 2026


