Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
51°F
11°C
| Humidity | 92% |
| Wind Speed | Calm |
| Barometer | 29.95 in (1013.8 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 7 Oct 2:54 am CDT |
Extended Forecast for
5 Miles WNW Grafton IL
Overnight
Low: 53 °F
Clear
Wednesday
High: 87 °F
Sunny
Wednesday Night
Low: 55 °F
Mostly Clear
Thursday
High: 82 °F
Sunny
Thursday Night
Low: 57 °F
Mostly Clear
Friday
High: 87 °F
Sunny
Friday Night
Low: 62 °F
Clear
Saturday
High: 87 °F
Sunny
Saturday Night
Low: 62 °F
Partly Cloudy
then Slight
Chance
Showers
Detailed Forecast
Overnight
Clear, with a low around 53. Southwest wind around 6 mph.
Wednesday
Sunny, with a high near 87. West wind 6 to 10 mph.
Wednesday Night
Mostly clear, with a low around 55. North wind 3 to 6 mph.
Thursday
Sunny, with a high near 82. Light north wind.
Thursday Night
Mostly clear, with a low around 57. East wind around 6 mph.
Friday
Sunny, with a high near 87.
Friday Night
Clear, with a low around 62.
Saturday
Sunny, with a high near 87.
Saturday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 62.
Sunday
A 30 percent chance of showers before 1pm. Mostly sunny, with a high near 81.
Sunday Night
Partly cloudy, with a low around 60.
Columbus Day
Mostly sunny, with a high near 85.
Monday Night
A 20 percent chance of showers. Mostly clear, with a low around 62.
Tuesday
A 30 percent chance of showers. Mostly sunny, with a high near 81.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
5 Miles WNW Grafton IL
39°N 90.5°W (Elev. 801 ft)
39°N 90.5°W (Elev. 801 ft)
1:26 am CDT Oct 7, 2026
3am CDT Oct 7, 2026-6pm CDT Oct 13, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
