Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
46°F
8°C
| Humidity | 89% |
| Wind Speed | Calm |
| Barometer | 30.37 in (1028.4 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Last update | 18 Oct 11:54 pm CDT |
Extended Forecast for
4 Miles ESE Old Monroe MO
Overnight
Low: 41 °F
Clear
Monday
High: 74 °F
Patchy Fog
then SunnyMonday Night
Low: 45 °F
Partly Cloudy
Tuesday
High: 75 °F
Sunny
Tuesday Night
Low: 46 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 48 °F
Mostly Clear
Thursday
High: 77 °F
Sunny
Thursday Night
Low: 50 °F
Clear
Detailed Forecast
Overnight
Clear, with a low around 41. Light and variable wind.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 74. Calm wind.
Monday Night
Partly cloudy, with a low around 45. Calm wind.
Tuesday
Sunny, with a high near 75. Calm wind.
Tuesday Night
Mostly clear, with a low around 46. Calm wind.
Wednesday
Sunny, with a high near 77.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 77.
Thursday Night
Clear, with a low around 50.
Friday
Sunny, with a high near 77.
Friday Night
Mostly clear, with a low around 49.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 52.
Sunday
Mostly sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles ESE Old Monroe MO
38.92°N 90.67°W (Elev. 430 ft)
38.92°N 90.67°W (Elev. 430 ft)
10:41 pm CDT Oct 18, 2026
12am CDT Oct 19, 2026-6pm CDT Oct 25, 2026
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