Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fog/Mist
35°F
2°C
| Humidity | 89% |
| Wind Speed | SE 10 mph |
| Barometer | 29.91 in (1012.9 mb) |
| Dewpoint | 32°F (0°C) |
| Visibility | 6.00 mi |
| Wind Chill | 27°F (-3°C) |
| Last update | 7 Dec 1:54 am CST |
Extended Forecast for
3 Miles SSW Dow IL
Overnight

Low: 34 °F
Chance
Sprinkles/FlurriesSunday
High: 37 °F
Chance
Sprinkles/Flurries
then CloudySunday Night

Low: 20 °F
Mostly Cloudy
Monday

High: 32 °F
Mostly Sunny
Monday Night

Low: 24 °F
Partly Cloudy
Tuesday

High: 49 °F
Mostly Sunny
Tuesday Night

Low: 39 °F
Mostly Cloudy
Wednesday

High: 45 °F
Partly Sunny
Wednesday Night
Low: 26 °F
Mostly Cloudy
then Slight
Chance Snow
Detailed Forecast
Overnight
A chance of sprinkles and flurries after 5am. Mostly cloudy, with a low around 34. South wind around 7 mph.
Sunday
A chance of sprinkles and flurries before 10am. Cloudy, with a high near 37. South wind 5 to 14 mph becoming north in the morning. Winds could gust as high as 24 mph.
Sunday Night
Mostly cloudy, with a low around 20. North wind 7 to 13 mph, with gusts as high as 21 mph.
Monday
Mostly sunny, with a high near 32. North wind around 6 mph becoming light and variable.
Monday Night
Partly cloudy, with a low around 24. Southeast wind 6 to 11 mph becoming southwest after midnight.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 45.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 26.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 35.
Thursday Night
Mostly cloudy, with a low around 15.
Friday
Partly sunny, with a high near 23.
Friday Night
Mostly cloudy, with a low around 5.
Saturday
Partly sunny and cold, with a high near 19.
Additional Forecasts and Information
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ABOUT 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)
2:41 am CST Dec 7, 2025
2am CST Dec 7, 2025-6pm CST Dec 13, 2025


