Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
89°F
32°C
| Humidity | 33% |
| Wind Speed | W 8 mph |
| Barometer | 29.86 in (1010.8 mb) |
| Dewpoint | 56°F (13°C) |
| Visibility | 10.00 mi |
| Heat Index | 87°F (31°C) |
| Last update | 7 Oct 3:54 pm CDT |
Extended Forecast for
2 Miles NNW Grafton IL
Tonight
Low: 57 °F
Clear
Thursday
High: 83 °F
Sunny
Thursday Night
Low: 59 °F
Mostly Clear
Friday
High: 88 °F
Sunny
Friday Night
Low: 63 °F
Clear
Saturday
High: 87 °F
Mostly Sunny
Saturday Night
Low: 58 °F
Slight Chance
RainSunday
High: 81 °F
Mostly Sunny
Sunday Night
Low: 60 °F
Partly Cloudy
Detailed Forecast
Tonight
Clear, with a low around 57. Northwest wind 5 to 8 mph becoming calm after midnight.
Thursday
Sunny, with a high near 83. Calm wind becoming northeast around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 59. Light and variable wind becoming east around 5 mph in the evening.
Friday
Sunny, with a high near 88. South wind 6 to 10 mph.
Friday Night
Clear, with a low around 63. South wind 6 to 8 mph.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 58.
Sunday
Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 60.
Columbus Day
Sunny, with a high near 90.
Monday Night
Mostly clear, with a low around 57.
Tuesday
A 20 percent chance of showers. Sunny, with a high near 74.
Tuesday Night
Partly cloudy, with a low around 51.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 72.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
2 Miles NNW Grafton IL
39°N 90.44°W (Elev. 774 ft)
39°N 90.44°W (Elev. 774 ft)
3:46 pm CDT Oct 7, 2026
4pm CDT Oct 7, 2026-6pm CDT Oct 14, 2026
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