Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
A Few Clouds
63°F
17°C
| Humidity | 93% |
| Wind Speed | S 9 mph |
| Barometer | 29.74 in (1006.7 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Last update | 3 Nov 11:54 pm CST |
Extended Forecast for
Grafton IL
Overnight
Low: 54 °F
Chance Rain
Wednesday
High: 61 °F
Mostly Cloudy
Wednesday Night
Low: 46 °F
Decreasing
CloudsThursday
High: 63 °F
Increasing
CloudsThursday Night
Low: 46 °F
Mostly Cloudy
Friday
High: 56 °F
Partly Sunny
Friday Night
Low: 37 °F
Partly Cloudy
Saturday
High: 55 °F
Mostly Sunny
Saturday Night
Low: 36 °F
Partly Cloudy
Detailed Forecast
Overnight
A chance of rain, mainly before 1am, then a slight chance of drizzle after 3am. Mostly cloudy, with a low around 54. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Wednesday
Mostly cloudy, with a high near 61. West wind 10 to 17 mph.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 46. West wind 7 to 9 mph.
Thursday
Increasing clouds, with a high near 63. West wind 8 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Mostly cloudy, with a low around 46. Northwest wind 6 to 8 mph.
Friday
Partly sunny, with a high near 56.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 55.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Sunny, with a high near 60.
Sunday Night
Clear, with a low around 38.
Monday
Sunny, with a high near 65.
Monday Night
Clear, with a low around 43.
Tuesday
Sunny, with a high near 68.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grafton IL
38.98°N 90.42°W (Elev. 673 ft)
38.98°N 90.42°W (Elev. 673 ft)
12:26 am CST Nov 4, 2026
12am CST Nov 4, 2026-6pm CST Nov 10, 2026
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