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Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fog/Mist
12°F
-11°C
| Humidity | 92% |
| Wind Speed | Calm |
| Barometer | 30.27 in (1025.5 mb) |
| Dewpoint | 10°F (-12°C) |
| Visibility | 4.00 mi |
| Last update | 5 Feb 3:54 am CST |
Extended Forecast for
3 Miles SSW Dow IL
Today
High: 40 °F
Mostly Cloudy
Tonight
Low: 33 °F
Partly Cloudy
Friday
High: 46 °F
Mostly Sunny
Friday Night
Low: 24 °F
Partly Cloudy
Saturday
High: 36 °F
Mostly Sunny
Saturday Night
Low: 26 °F
Mostly Cloudy
Sunday
High: 54 °F
Sunny
Sunday Night
Low: 31 °F
Mostly Clear
Monday
High: 59 °F
Sunny
Detailed Forecast
Today
Mostly cloudy, with a high near 40. South wind 5 to 10 mph.
Tonight
Partly cloudy, with a steady temperature around 33. South wind 6 to 9 mph becoming west after midnight.
Friday
Mostly sunny, with a high near 46. West wind 10 to 17 mph becoming northwest in the afternoon. Winds could gust as high as 26 mph.
Friday Night
Partly cloudy, with a low around 24. North wind 6 to 13 mph, with gusts as high as 20 mph.
Saturday
Mostly sunny, with a high near 36. Northeast wind 6 to 8 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 26.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 31.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 41.
Tuesday
A 20 percent chance of rain. Partly sunny, with a high near 62.
Tuesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 39.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 53.
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)
3:51 am CST Feb 5, 2026
4am CST Feb 5, 2026-6pm CST Feb 11, 2026
Additional Resources
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Hourly Weather Forecast
