Current conditions at
St. Louis Downtown Airport (KCPS)
Lat: 38.56°NLon: 90.15°WElev: 410ft.
Fair
38°F
3°C
| Humidity | 73% |
| Wind Speed | NE 6 mph |
| Barometer | 30.10 in (1019.2 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 33°F (1°C) |
| Last update | 14 Mar 2:53 am CDT |
Extended Forecast for
3 Miles SE Mascoutah IL
Overnight
Low: 36 °F
Partly Cloudy
Saturday
High: 63 °F
Mostly Sunny
Saturday Night
Low: 54 °F
Partly Cloudy
Sunday
High: 67 °F
Breezy.
Slight Chance
Rain then
RainSunday Night
Low: 22 °F
Rain/Snow and
BreezyMonday
High: 28 °F
Slight Chance
Snow and
BlusteryMonday Night
Low: 13 °F
Partly Cloudy
Tuesday
High: 36 °F
Mostly Sunny
Tuesday Night
Low: 30 °F
Mostly Cloudy
then Slight
Chance
Rain/Snow
Detailed Forecast
Overnight
Partly cloudy, with a low around 36. Northeast wind 3 to 5 mph.
Saturday
Mostly sunny, with a high near 63. East wind 6 to 14 mph becoming southeast in the afternoon. Winds could gust as high as 21 mph.
Saturday Night
Partly cloudy, with a low around 54. South wind 10 to 17 mph, with gusts as high as 28 mph.
Sunday
Rain, with thunderstorms also possible after 4pm. High near 67. Breezy, with a south wind 22 to 28 mph, with gusts as high as 39 mph. Chance of precipitation is 80%.
Sunday Night
Rain before 10pm, then rain and snow between 10pm and 1am, then a chance of snow after 1am. Some thunder is also possible. Low around 22. Breezy, with a southwest wind 21 to 26 mph becoming west in the evening. Winds could gust as high as 40 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Monday
A 20 percent chance of snow before 1pm. Mostly cloudy, with a high near 28. Blustery.
Monday Night
Partly cloudy, with a low around 13.
Tuesday
Mostly sunny, with a high near 36.
Tuesday Night
A slight chance of rain and snow after 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Sunny, with a high near 69.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Sunny, with a high near 69.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SE Mascoutah IL
38.47°N 89.76°W (Elev. 423 ft)
38.47°N 89.76°W (Elev. 423 ft)
1:26 am CDT Mar 14, 2026
3am CDT Mar 14, 2026-6pm CDT Mar 20, 2026
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