Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
51°F
11°C
| Humidity | 41% |
| Wind Speed | S 9 mph |
| Barometer | 30.01 in (1016.3 mb) |
| Dewpoint | 28°F (-2°C) |
| Visibility | 10.00 mi |
| Wind Chill | 48°F (9°C) |
| Last update | 18 Mar 10:54 am CDT |
Extended Forecast for
3 Miles SSW Dow IL
Today
High: 62 °F
Sunny
Tonight
Low: 42 °F
Mostly Cloudy
Thursday
High: 70 °F
Decreasing
CloudsThursday Night
Low: 46 °F
Partly Cloudy
Friday
High: 77 °F
Mostly Sunny
Friday Night
Low: 52 °F
Partly Cloudy
Saturday
High: 79 °F
Sunny
Saturday Night
Low: 55 °F
Mostly Clear
Sunday
High: 77 °F
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 62. West wind 8 to 10 mph.
Tonight
Mostly cloudy, with a low around 42. Light and variable wind becoming south around 5 mph after midnight.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 70. South wind around 6 mph becoming north in the afternoon.
Thursday Night
Partly cloudy, with a low around 46. North wind around 6 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 77. Light south wind becoming southwest 5 to 9 mph in the morning.
Friday Night
Partly cloudy, with a low around 52.
Saturday
Sunny, with a high near 79.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Mostly cloudy, with a low around 36.
Monday
Mostly cloudy, with a high near 52.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 58.
Additional Forecasts and Information
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Forecast AreaABOUT 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)
8:52 am CDT Mar 18, 2026
11am CDT Mar 18, 2026-6pm CDT Mar 24, 2026
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