Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
39°F
4°C
| Humidity | 82% |
| Wind Speed | Calm |
| Barometer | 30.17 in (1021.9 mb) |
| Dewpoint | 34°F (1°C) |
| Visibility | 10.00 mi |
| Last update | 2 Nov 7:54 pm CST |
Extended Forecast for
3 Miles E Dow IL
Tonight
Low: 37 °F
Clear then
Areas FrostMonday
High: 64 °F
Sunny
Monday Night
Low: 39 °F
Increasing
CloudsTuesday
High: 69 °F
Mostly Sunny
Tuesday Night
Low: 50 °F
Partly Cloudy
Wednesday
High: 72 °F
Sunny
Wednesday Night
Low: 41 °F
Clear
Thursday
High: 66 °F
Sunny
Thursday Night
Low: 52 °F
Partly Cloudy
then Chance
Showers
Detailed Forecast
Tonight
Areas of frost after 5am. Otherwise, mostly clear, with a low around 37. South wind around 7 mph.
Monday
Sunny, with a high near 64. Southwest wind 5 to 9 mph becoming northwest in the afternoon.
Monday Night
Increasing clouds, with a low around 39. Calm wind becoming southeast around 5 mph after midnight.
Tuesday
Mostly sunny, with a high near 69. South wind 6 to 15 mph, with gusts as high as 26 mph.
Tuesday Night
Partly cloudy, with a low around 50. Southwest wind around 10 mph.
Wednesday
Sunny, with a high near 72.
Wednesday Night
Clear, with a low around 41.
Thursday
Sunny, with a high near 66.
Thursday Night
A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 52.
Friday
A 20 percent chance of showers before noon. Mostly sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 43.
Saturday
Mostly sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 54.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles E Dow IL
39.04°N 90.24°W (Elev. 600 ft)
39.04°N 90.24°W (Elev. 600 ft)
4:36 pm CST Nov 2, 2025
8pm CST Nov 2, 2025-6pm CST Nov 9, 2025
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
