Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
58°F
14°C
| Humidity | 41% |
| Wind Speed | Calm |
| Barometer | 30.48 in (1032.0 mb) |
| Dewpoint | 34°F (1°C) |
| Visibility | 10.00 mi |
| Last update | 17 Oct 3:54 pm CDT |
Extended Forecast for
3 Miles ENE Old Monroe MO
Tonight
Low: 38 °F
Clear then
Patchy FogSunday
High: 70 °F
Patchy Fog
then SunnySunday Night
Low: 39 °F
Clear
Monday
High: 74 °F
Sunny
Monday Night
Low: 42 °F
Mostly Clear
Tuesday
High: 76 °F
Mostly Sunny
Tuesday Night
Low: 44 °F
Partly Cloudy
Wednesday
High: 79 °F
Sunny
Wednesday Night
Low: 48 °F
Mostly Clear
Detailed Forecast
Tonight
Patchy fog after 5am. Otherwise, clear, with a low around 38. Light southeast wind.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 70. South wind 3 to 7 mph.
Sunday Night
Clear, with a low around 39. Light and variable wind.
Monday
Sunny, with a high near 74. Light and variable wind.
Monday Night
Mostly clear, with a low around 42. Calm wind.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles ENE Old Monroe MO
38.94°N 90.7°W (Elev. 433 ft)
38.94°N 90.7°W (Elev. 433 ft)
2:20 pm CDT Oct 17, 2026
4pm CDT Oct 17, 2026-6pm CDT Oct 24, 2026
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