Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
50°F
10°C
| Humidity | 44% |
| Wind Speed | Calm |
| Barometer | 29.96 in (1014.6 mb) |
| Dewpoint | 29°F (-2°C) |
| Visibility | 10.00 mi |
| Last update | 11 Nov 11:54 pm CST |
Extended Forecast for
Grafton IL
Overnight
Low: 38 °F
Clear
Wednesday
High: 63 °F
Sunny
Wednesday Night
Low: 41 °F
Mostly Clear
Thursday
High: 63 °F
Partly Sunny
Thursday Night
Low: 50 °F
Partly Cloudy
Friday
High: 74 °F
Mostly Sunny
Friday Night
Low: 57 °F
Partly Cloudy
Saturday
High: 77 °F
Mostly Sunny
Saturday Night
Low: 54 °F
Partly Cloudy
Detailed Forecast
Overnight
Clear, with a low around 38. West wind 7 to 9 mph.
Wednesday
Sunny, with a high near 63. Northwest wind 6 to 9 mph.
Wednesday Night
Mostly clear, with a low around 41. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Partly sunny, with a high near 63. Calm wind becoming south 5 to 9 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 50. South wind 6 to 8 mph.
Friday
Mostly sunny, with a high near 74.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
A 30 percent chance of rain, mainly after noon. Mostly sunny, with a high near 66.
Sunday Night
A 20 percent chance of rain. Partly cloudy, with a low around 44.
Monday
A 40 percent chance of rain. Partly sunny, with a high near 57.
Monday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 44.
Tuesday
Partly sunny, with a high near 55.
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)
10:56 pm CST Nov 11, 2025
12am CST Nov 12, 2025-6pm CST Nov 18, 2025
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