Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Light Snow
25°F
-4°C
| Humidity | 63% |
| Wind Speed | W 20 G 28 mph |
| Barometer | 30.13 in (1020.7 mb) |
| Dewpoint | 14°F (-10°C) |
| Visibility | 8.00 mi |
| Wind Chill | 11°F (-12°C) |
| Last update | 16 Mar 7:54 pm CDT |
Extended Forecast for
3 Miles SSW Dow IL
Tonight

Low: 13 °F
Mostly Cloudy
Tuesday

High: 33 °F
Increasing
CloudsTuesday Night
Low: 29 °F
Chance Snow
then Chance
Rain/SnowWednesday

High: 63 °F
Sunny
Wednesday Night

Low: 42 °F
Mostly Cloudy
Thursday

High: 72 °F
Sunny
Thursday Night

Low: 46 °F
Partly Cloudy
Friday

High: 77 °F
Mostly Sunny
Friday Night

Low: 51 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, with a low around 13. Northwest wind 14 to 17 mph, with gusts as high as 26 mph.
Tuesday
Increasing clouds, with a high near 33. Northwest wind 7 to 9 mph becoming south in the afternoon.
Tuesday Night
A chance of snow before 4am, then a slight chance of rain. Cloudy, with a low around 29. Southeast wind 8 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Wednesday
Sunny, with a high near 63. South wind around 11 mph becoming west in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 42. West wind around 6 mph becoming light and variable.
Thursday
Sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Sunny, with a high near 71.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Mostly sunny, with a high near 54.
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)
5:31 pm CDT Mar 16, 2026
8pm CDT Mar 16, 2026-6pm CDT Mar 23, 2026


