Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
33°F
1°C
| Humidity | 78% |
| Wind Speed | W 3 mph |
| Barometer | 29.90 in (1012.9 mb) |
| Dewpoint | 27°F (-3°C) |
| Visibility | 10.00 mi |
| Last update | 6 Dec 1:54 am CST |
Extended Forecast for
3 Miles SSW Dow IL
Overnight

Low: 26 °F
Partly Cloudy
Saturday

High: 38 °F
Partly Sunny
Saturday Night

Low: 31 °F
Chance Rain
Sunday
High: 38 °F⇓
Slight Chance
Rain then
Mostly CloudySunday Night

Low: 14 °F
Mostly Cloudy
Monday

High: 30 °F
Mostly Sunny
Monday Night

Low: 21 °F
Partly Cloudy
Tuesday

High: 47 °F
Mostly Sunny
Tuesday Night

Low: 35 °F
Mostly Cloudy
Detailed Forecast
Overnight
Partly cloudy, with a low around 26. West wind around 6 mph.
Saturday
Partly sunny, with a high near 38. Calm wind becoming southeast around 6 mph in the afternoon.
Saturday Night
A 30 percent chance of rain, mainly between 10pm and 1am. Cloudy, with a low around 31. Southeast wind 6 to 8 mph.
Sunday
A 20 percent chance of rain before noon. Mostly cloudy, with a temperature falling to around 28 by 5pm. South wind 6 to 14 mph becoming north in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Mostly cloudy, with a low around 14. North wind 6 to 10 mph.
Monday
Mostly sunny, with a high near 30.
Monday Night
Partly cloudy, with a low around 21.
Tuesday
Mostly sunny, with a high near 47.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
A 20 percent chance of rain before noon. Partly sunny, with a high near 42.
Wednesday Night
Mostly cloudy, with a low around 24.
Thursday
A chance of rain and snow. Mostly cloudy, with a high near 35. Chance of precipitation is 30%.
Thursday Night
Mostly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 27.
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)
12:36 am CST Dec 6, 2025
2am CST Dec 6, 2025-6pm CST Dec 12, 2025


