Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
65°F
18°C
| Humidity | 32% |
| Wind Speed | S 8 mph |
| Barometer | 30.36 in (1028.0 mb) |
| Dewpoint | 34°F (1°C) |
| Visibility | 10.00 mi |
| Last update | 18 Oct 4:54 pm CDT |
Extended Forecast for
4 Miles WNW Hardin IL
Tonight
Low: 42 °F
Clear
Monday
High: 71 °F
Patchy Fog
then SunnyMonday Night
Low: 44 °F
Partly Cloudy
Tuesday
High: 75 °F
Mostly Sunny
Tuesday Night
Low: 46 °F
Mostly Clear
Wednesday
High: 77 °F
Sunny
Wednesday Night
Low: 48 °F
Mostly Clear
Thursday
High: 78 °F
Sunny
Thursday Night
Low: 50 °F
Mostly Clear
Detailed Forecast
Tonight
Clear, with a low around 42. Southeast wind around 5 mph becoming calm in the evening.
Monday
Patchy fog before 8am. Otherwise, sunny, with a high near 71. Light southeast wind.
Monday Night
Partly cloudy, with a low around 44. Light and variable wind.
Tuesday
Mostly 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 78.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 78.
Friday Night
Mostly clear, with a low around 50.
Saturday
Mostly sunny, with a high near 79.
Saturday Night
Partly cloudy, with a low around 53.
Sunday
Mostly sunny, with a high near 80.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
4 Miles WNW Hardin IL
39.16°N 90.69°W (Elev. 430 ft)
39.16°N 90.69°W (Elev. 430 ft)
2:56 pm CDT Oct 18, 2026
5pm CDT Oct 18, 2026-6pm CDT Oct 25, 2026
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