Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
59°F
15°C
| Humidity | 67% |
| Wind Speed | W 14 G 22 mph |
| Barometer | 29.80 in (1008.8 mb) |
| Dewpoint | 48°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 4 Nov 11:54 am CST |
Extended Forecast for
3 Miles WNW Grafton IL
This Afternoon
High: 58 °F
Patchy
DrizzleTonight
Low: 45 °F
Decreasing
CloudsThursday
High: 60 °F
Increasing
CloudsThursday Night
Low: 45 °F
Isolated
Showers then
Mostly CloudyFriday
High: 56 °F
Partly Sunny
Friday Night
Low: 37 °F
Partly Cloudy
Saturday
High: 55 °F
Mostly Sunny
Saturday Night
Low: 37 °F
Partly Cloudy
Sunday
High: 60 °F
Sunny
Detailed Forecast
This Afternoon
Patchy drizzle before 1pm. Cloudy, with a high near 58. West wind 9 to 13 mph, with gusts as high as 23 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 45. West wind 6 to 8 mph.
Thursday
Increasing clouds, with a high near 60. West wind 8 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Isolated showers between 8pm and 10pm. Mostly cloudy, with a low around 45. Northwest wind 5 to 9 mph. Chance of precipitation is 20%.
Friday
Partly sunny, with a high near 56. North wind 9 to 11 mph.
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 37.
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 44.
Tuesday
Sunny, with a high near 68.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles WNW Grafton IL
38.98°N 90.47°W (Elev. 689 ft)
38.98°N 90.47°W (Elev. 689 ft)
11:31 am CST Nov 4, 2026
12pm CST Nov 4, 2026-6pm CST Nov 10, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
