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Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Mostly Cloudy
24°F
-4°C
| Humidity | 81% |
| Wind Speed | SE 6 mph |
| Barometer | 30.14 in (1021.3 mb) |
| Dewpoint | 19°F (-7°C) |
| Visibility | 7.00 mi |
| Wind Chill | 17°F (-8°C) |
| Last update | 5 Feb 9:54 am CST |
Extended Forecast for
St. Charles County Smartt Airport MO
Today

High: 39 °F
Partly Sunny
Tonight

Low: 27 °F
Partly Cloudy
Friday
High: 45 °F
Mostly Sunny
and Breezy
then Mostly
CloudyFriday Night

Low: 21 °F
Partly Cloudy
Saturday

High: 36 °F
Mostly Sunny
Saturday Night

Low: 23 °F
Mostly Cloudy
Sunday

High: 54 °F
Sunny
Sunday Night

Low: 29 °F
Mostly Clear
Monday

High: 59 °F
Sunny
Detailed Forecast
Today
Partly sunny, with a high near 39. South wind 6 to 10 mph.
Tonight
Partly cloudy, with a low around 27. South wind 5 to 9 mph becoming west in the evening.
Friday
Increasing clouds, with a high near 45. Breezy, with a west wind 11 to 20 mph becoming northwest in the afternoon. Winds could gust as high as 32 mph.
Friday Night
Partly cloudy, with a low around 21. Northwest wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday
Mostly sunny, with a high near 36. Northeast wind 5 to 8 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Sunny, with a high near 54.
Sunday Night
Mostly clear, with a low around 29.
Monday
Sunny, with a high near 59.
Monday Night
Mostly clear, with a low around 38.
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 38.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 54.
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)
10:51 am CST Feb 5, 2026
10am CST Feb 5, 2026-6pm CST Feb 11, 2026


