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Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
28°F
-2°C
| Humidity | 78% |
| Wind Speed | SW 5 mph |
| Barometer | 30.16 in (1021.6 mb) |
| Dewpoint | 22°F (-6°C) |
| Visibility | 10.00 mi |
| Wind Chill | 22°F (-6°C) |
| Last update | 2 Feb 4:54 am CST |
Extended Forecast for
St. Charles County Smartt Airport MO
Today
High: 37 °F
Partly Sunny
Tonight
Low: 23 °F
Cloudy
Tuesday
High: 34 °F
Slight Chance
Snow then
Partly SunnyTuesday Night
Low: 13 °F
Partly Cloudy
Wednesday
High: 30 °F
Mostly Sunny
Wednesday Night
Low: 12 °F
Partly Cloudy
Thursday
High: 39 °F
Mostly Sunny
Thursday Night
Low: 28 °F
Mostly Clear
Friday
High: 45 °F
Mostly Sunny
Detailed Forecast
Today
Partly sunny, with a high near 37. West wind around 5 mph becoming calm in the morning.
Tonight
Cloudy, with a low around 23. East wind 3 to 6 mph.
Tuesday
A 20 percent chance of snow before 11am. Mostly cloudy, with a high near 34. Northeast wind 5 to 10 mph becoming north in the afternoon.
Tuesday Night
Partly cloudy, with a low around 13. North wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 30. Calm wind becoming northwest around 6 mph.
Wednesday Night
Partly cloudy, with a low around 12.
Thursday
Mostly sunny, with a high near 39.
Thursday Night
Mostly clear, with a low around 28.
Friday
Mostly sunny, with a high near 45.
Friday Night
Mostly clear, with a low around 18.
Saturday
Sunny, with a high near 37.
Saturday Night
Partly cloudy, with a low around 22.
Sunday
Mostly sunny, with a high near 44.
Additional Forecasts and Information
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Point Forecast:
St. Charles County Smartt Airport MO
38.94°N 90.45°W (Elev. 427 ft)
38.94°N 90.45°W (Elev. 427 ft)
4:46 am CST Feb 2, 2026
5am CST Feb 2, 2026-6pm CST Feb 8, 2026
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