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Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
24°F
-4°C
| Humidity | 50% |
| Wind Speed | W 8 mph |
| Barometer | 29.94 in (1014.3 mb) |
| Dewpoint | 8°F (-13°C) |
| Visibility | 10.00 mi |
| Wind Chill | 15°F (-9°C) |
| Last update | 17 Jan 12:54 am CST |
Extended Forecast for
3 Miles SSW Dow IL
Overnight

Low: 19 °F
Slight Chance
SnowSaturday

High: 25 °F
Partly Sunny
Saturday Night

Low: 11 °F
Gradual
ClearingSunday

High: 32 °F
Increasing
CloudsSunday Night

Low: 12 °F
Partly Cloudy
M.L.King Day

High: 21 °F
Sunny
Monday Night

Low: 10 °F
Mostly Clear
Tuesday

High: 35 °F
Mostly Sunny
Tuesday Night

Low: 26 °F
Partly Cloudy
Detailed Forecast
Overnight
A 20 percent chance of snow before 3am. Partly cloudy, with a low around 19. West wind around 14 mph, with gusts as high as 26 mph.
Saturday
Partly sunny, with a high near 25. West wind 13 to 18 mph, with gusts as high as 25 mph.
Saturday Night
Mostly cloudy during the early evening, then gradual clearing, with a low around 11. West wind 8 to 15 mph.
Sunday
Increasing clouds, with a high near 32. Southwest wind 8 to 14 mph, with gusts as high as 23 mph.
Sunday Night
Partly cloudy, with a low around 12. Northwest wind 10 to 17 mph, with gusts as high as 25 mph.
M.L.King Day
Sunny, with a high near 21.
Monday Night
Mostly clear, with a low around 10.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 26.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
Partly cloudy, with a low around 23.
Thursday
A slight chance of rain and snow. Mostly sunny, with a high near 35. Chance of precipitation is 20%.
Thursday Night
A slight chance of snow and freezing rain. Partly cloudy, with a low around 22. Chance of precipitation is 20%.
Friday
A 20 percent chance of rain. Mostly sunny, with a high near 38.
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)
9:56 pm CST Jan 16, 2026
1am CST Jan 17, 2026-6pm CST Jan 23, 2026



