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Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
3°F
-16°C
| Humidity | 76% |
| Wind Speed | W 7 mph |
| Barometer | 30.49 in (1033.2 mb) |
| Dewpoint | -3°F (-19°C) |
| Visibility | 10.00 mi |
| Wind Chill | -9°F (-23°C) |
| Last update | 1 Feb 12:54 am CST |
Extended Forecast for
St. Charles County Smartt Airport MO
Overnight

Low: 0 °F
Mostly Clear
Sunday

High: 29 °F
Chance Snow
Sunday Night
Low: 16 °F
Chance Snow
then Partly
CloudyMonday

High: 36 °F
Partly Sunny
Monday Night

Low: 22 °F
Mostly Cloudy
Tuesday

High: 31 °F
Slight Chance
SnowTuesday Night

Low: 11 °F
Mostly Cloudy
Wednesday

High: 27 °F
Mostly Sunny
Wednesday Night

Low: 11 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 0. Light west wind.
Sunday
A 40 percent chance of snow, mainly after 2pm. Increasing clouds, with a high near 29. Light southwest wind becoming south 5 to 10 mph in the morning.
Sunday Night
A 40 percent chance of snow, mainly before 7pm. Cloudy, then gradually becoming partly cloudy, with a low around 16. South wind around 6 mph becoming calm in the evening.
Monday
Partly sunny, with a high near 36. Calm wind becoming west around 6 mph.
Monday Night
Mostly cloudy, with a low around 22. Calm wind becoming northeast around 5 mph after midnight.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 31.
Tuesday Night
Mostly cloudy, with a low around 11.
Wednesday
Mostly sunny, with a high near 27.
Wednesday Night
Partly cloudy, with a low around 11.
Thursday
Partly sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 25.
Friday
Mostly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 20.
Saturday
Mostly sunny, with a high near 36.
Additional Forecasts and Information
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ABOUT THIS FORECAST
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)
10:57 pm CST Jan 31, 2026
1am CST Feb 1, 2026-6pm CST Feb 7, 2026


