Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
41°F
5°C
| Humidity | 67% |
| Wind Speed | NW 20 G 26 mph |
| Barometer | 30.00 in (1015.9 mb) |
| Dewpoint | 31°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 9 Nov 2:54 am CST |
Extended Forecast for
3 Miles SSW Dow IL
Overnight

Low: 34 °F
Chance
Flurries and
BreezySunday

High: 37 °F
Chance
Flurries and
BreezySunday Night

Low: 24 °F
Chance
FlurriesMonday
High: 40 °F
Sunny and
Breezy then
SunnyMonday Night

Low: 25 °F
Partly Cloudy
Veterans Day

High: 55 °F
Partly Sunny
Tuesday Night

Low: 39 °F
Mostly Clear
Wednesday

High: 63 °F
Sunny
Wednesday Night

Low: 35 °F
Mostly Clear
Detailed Forecast
Overnight
A chance of flurries after 5am. Cloudy, with a low around 34. Breezy, with a northwest wind around 23 mph, with gusts as high as 33 mph.
Sunday
A chance of flurries. Cloudy through mid morning, then gradual clearing, with a high near 37. Breezy, with a northwest wind 18 to 23 mph, with gusts as high as 34 mph.
Sunday Night
A chance of flurries before 1am. Partly cloudy, with a low around 24. Northwest wind 15 to 17 mph, with gusts as high as 26 mph.
Monday
Sunny, with a high near 40. Breezy, with a northwest wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 29 mph.
Monday Night
Partly cloudy, with a low around 25. West wind 5 to 9 mph becoming south after midnight.
Veterans Day
Partly sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Mostly sunny, with a high near 63.
Thursday Night
Partly cloudy, with a low around 47.
Friday
Mostly sunny, with a high near 71.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 75.
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)
2:56 am CST Nov 9, 2025
3am CST Nov 9, 2025-6pm CST Nov 15, 2025


