Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
88°F
31°C
| Humidity | 34% |
| Wind Speed | W 9 mph |
| Barometer | 29.87 in (1011.0 mb) |
| Dewpoint | 56°F (13°C) |
| Visibility | 10.00 mi |
| Heat Index | 86°F (30°C) |
| Last update | 7 Oct 2:54 pm CDT |
Extended Forecast for
3 Miles WNW Hardin IL
Tonight
Low: 58 °F
Clear then
Patchy FogThursday
High: 82 °F
Sunny
Thursday Night
Low: 59 °F
Mostly Clear
Friday
High: 89 °F
Sunny
Friday Night
Low: 63 °F
Clear
Saturday
High: 88 °F
Mostly Sunny
Saturday Night
Low: 58 °F
Slight Chance
RainSunday
High: 83 °F
Mostly Sunny
Sunday Night
Low: 61 °F
Partly Cloudy
Detailed Forecast
Tonight
Patchy fog after 5am. Otherwise, clear, with a low around 58. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 82. Calm wind.
Thursday Night
Mostly clear, with a low around 59. Calm wind.
Friday
Sunny, with a high near 89. South wind 3 to 7 mph.
Friday Night
Clear, with a low around 63. South wind around 6 mph.
Saturday
Mostly sunny, with a high near 88.
Saturday Night
A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 61.
Columbus Day
Sunny, with a high near 91.
Monday Night
Mostly clear, with a low around 57.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 73.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles WNW Hardin IL
39.16°N 90.69°W (Elev. 430 ft)
39.16°N 90.69°W (Elev. 430 ft)
2:21 pm CDT Oct 7, 2026
3pm CDT Oct 7, 2026-6pm CDT Oct 14, 2026
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