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 | 73% |
| Wind Speed | E 7 mph |
| Barometer | 29.91 in (1013.1 mb) |
| Dewpoint | 31°F (-1°C) |
| Visibility | 9.00 mi |
| Wind Chill | 34°F (1°C) |
| Last update | 6 Dec 1:54 pm CST |
Extended Forecast for
3 Miles SSW Dow IL
Tonight

Low: 32 °F
Slight Chance
RainSunday
High: 35 °F⇓
Slight Chance
Drizzle then
Mostly CloudySunday Night

Low: 16 °F
Mostly Cloudy
Monday

High: 31 °F
Mostly Sunny
Monday Night

Low: 23 °F
Partly Cloudy
Tuesday

High: 48 °F
Partly Sunny
Tuesday Night

Low: 37 °F
Mostly Cloudy
Wednesday

High: 44 °F
Partly Sunny
Wednesday Night
Low: 26 °F
Mostly Cloudy
then Slight
Chance Snow
Detailed Forecast
Tonight
A slight chance of rain before 4am, then a slight chance of rain after 5am. Mostly cloudy, with a low around 32. Southeast wind 6 to 8 mph becoming south after midnight. Chance of precipitation is 20%.
Sunday
A slight chance of drizzle before 11am. Mostly cloudy, with a temperature rising to near 35 by 9am, then falling to around 28 during the remainder of the day. Southwest wind 5 to 15 mph becoming north in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
Mostly cloudy, with a low around 16. North wind 5 to 11 mph.
Monday
Mostly sunny, with a high near 31. Light and variable wind becoming south around 6 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 23. South wind 6 to 10 mph.
Tuesday
Partly sunny, with a high near 48.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 44.
Wednesday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 26.
Thursday
A 30 percent chance of snow, mainly before noon. Mostly cloudy, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 18.
Friday
Partly sunny, with a high near 25.
Friday Night
Partly cloudy, with a low around 7.
Saturday
Mostly sunny, with a high near 21.
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)
2:11 pm CST Dec 6, 2025
3pm CST Dec 6, 2025-6pm CST Dec 13, 2025


