Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
11°F
-12°C
| Humidity | 81% |
| Wind Speed | Calm |
| Barometer | 30.17 in (1022.4 mb) |
| Dewpoint | 6°F (-14°C) |
| Visibility | 10.00 mi |
| Last update | 5 Dec 1:54 am CST |
Extended Forecast for
3 Miles SSW Dow IL
Overnight

Low: 5 °F
Mostly Clear
Friday

High: 39 °F
Sunny
Friday Night

Low: 27 °F
Mostly Cloudy
Saturday

High: 35 °F
Partly Sunny
Saturday Night
Low: 28 °F
Mostly Cloudy
then Chance
SnowSunday
High: 35 °F
Chance
Rain/Snow
then Mostly
CloudySunday Night

Low: 11 °F
Mostly Cloudy
Monday

High: 30 °F
Mostly Sunny
Monday Night

Low: 21 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 5. Light southeast wind.
Friday
Sunny, with a high near 39. South wind 5 to 9 mph.
Friday Night
Mostly cloudy, with a low around 27. South wind around 7 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 35. Northwest wind around 6 mph becoming light and variable.
Saturday Night
A 40 percent chance of snow after midnight. Mostly cloudy, with a low around 28. East wind around 7 mph.
Sunday
A chance of rain before 9am, then a chance of snow between 9am and noon. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 11.
Monday
Mostly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 43.
Wednesday Night
Mostly cloudy, with a low around 20.
Thursday
Mostly cloudy, with a high near 31.
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)
12:26 am CST Dec 5, 2025
2am CST Dec 5, 2025-6pm CST Dec 11, 2025


