News Headlines
Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
5°F
-15°C
| Humidity | 83% |
| Wind Speed | Calm |
| Barometer | 30.39 in (1029.8 mb) |
| Dewpoint | 1°F (-17°C) |
| Visibility | 10.00 mi |
| Last update | 28 Jan 3:54 am CST |
Extended Forecast for
3 Miles SSW Dow IL
Today
High: 29 °F
Mostly Sunny
Tonight
Low: 9 °F
Mostly Cloudy
Thursday
High: 21 °F
Cloudy
Thursday Night
Low: 4 °F
Mostly Cloudy
Friday
High: 16 °F
Cold
Friday Night
Low: 0 °F
Partly Cloudy
Saturday
High: 17 °F
Cold
Saturday Night
Low: 1 °F
Mostly Clear
Sunday
High: 25 °F
Mostly Sunny
then Slight
Chance Snow
Detailed Forecast
Today
Mostly sunny, with a high near 29. Wind chill values as low as -10. West wind 5 to 10 mph.
Tonight
Mostly cloudy, with a low around 9. Calm wind becoming northeast around 6 mph after midnight.
Thursday
Cloudy, with a high near 21. Northeast wind around 7 mph.
Thursday Night
Mostly cloudy, with a low around 4. North wind 3 to 6 mph.
Friday
Partly sunny and cold, with a high near 16. North wind 6 to 10 mph.
Friday Night
Partly cloudy, with a low around 0.
Saturday
Mostly sunny and cold, with a high near 17.
Saturday Night
Mostly clear, with a low around 1.
Sunday
A 20 percent chance of snow after noon. Mostly sunny, with a high near 25.
Sunday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 14.
Monday
Partly sunny, with a high near 33.
Monday Night
Mostly cloudy, with a low around 19.
Tuesday
A 20 percent chance of rain. Mostly cloudy, with a high near 34.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SSW Dow IL
39°N 90.33°W (Elev. 597 ft)
39°N 90.33°W (Elev. 597 ft)
3:16 am CST Jan 28, 2026
4am CST Jan 28, 2026-6pm CST Feb 3, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
