Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
49°F
9°C
| Humidity | 80% |
| Wind Speed | E 6 mph |
| Barometer | 30.27 in (1025.2 mb) |
| Dewpoint | 43°F (6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 46°F (8°C) |
| Last update | 4 Nov 7:54 am CST |
Extended Forecast for
Grafton IL
Today
High: 72 °F
Sunny
Tonight
Low: 51 °F
Mostly Clear
Wednesday
High: 69 °F
Sunny
Wednesday Night
Low: 39 °F
Clear
Thursday
High: 65 °F
Sunny
Thursday Night
Low: 56 °F
Mostly Cloudy
then Chance
RainFriday
High: 69 °F
Slight Chance
Rain then
Mostly SunnyFriday Night
Low: 43 °F
Mostly Clear
Saturday
High: 65 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 72. South wind 8 to 14 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 51. South wind around 11 mph, with gusts as high as 22 mph.
Wednesday
Sunny, with a high near 69. Southwest wind 7 to 11 mph becoming north in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Clear, with a low around 39. North wind around 6 mph becoming east after midnight.
Thursday
Sunny, with a high near 65. Southeast wind 6 to 14 mph, with gusts as high as 24 mph.
Thursday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 56.
Friday
A 20 percent chance of rain before noon. Mostly sunny, with a high near 69.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 65.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 48.
Sunday Night
Mostly clear, with a low around 28.
Monday
Sunny, with a high near 45.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Grafton IL
38.98°N 90.44°W (Elev. 515 ft)
38.98°N 90.44°W (Elev. 515 ft)
6:41 am CST Nov 4, 2025
8am CST Nov 4, 2025-6pm CST Nov 10, 2025
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