Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
55°F
13°C
| Humidity | 25% |
| Wind Speed | SW 20 G 32 mph |
| Barometer | 29.58 in (1001.8 mb) |
| Dewpoint | 20°F (-7°C) |
| Visibility | 10.00 mi |
| Wind Chill | 50°F (10°C) |
| Last update | 24 Feb 2:54 pm CST |
Extended Forecast for
St. Charles County Smartt Airport MO
Tonight

Low: 31 °F
Mostly Cloudy
Wednesday

High: 52 °F
Partly Sunny
Wednesday Night

Low: 32 °F
Chance Rain
Thursday
High: 52 °F
Slight Chance
Rain then
Mostly SunnyThursday Night

Low: 31 °F
Mostly Clear
Friday

High: 67 °F
Sunny
Friday Night

Low: 38 °F
Mostly Clear
Saturday

High: 63 °F
Sunny
Saturday Night

Low: 29 °F
Slight Chance
Rain/Snow
Detailed Forecast
Tonight
Mostly cloudy, with a low around 31. Southwest wind 6 to 11 mph becoming light and variable after midnight.
Wednesday
Partly sunny, with a high near 52. Calm wind becoming north around 6 mph in the afternoon.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 32. East wind 5 to 7 mph.
Thursday
A 20 percent chance of rain before noon. Partly sunny, with a high near 52. East wind 5 to 7 mph becoming northwest in the afternoon.
Thursday Night
Mostly clear, with a low around 31. Calm wind becoming southwest around 5 mph after midnight.
Friday
Sunny, with a high near 67.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 63.
Saturday Night
A slight chance of rain and snow. Partly cloudy, with a low around 29. Chance of precipitation is 20%.
Sunday
A slight chance of rain before noon, then a chance of rain and snow. Mostly cloudy, with a high near 45. Chance of precipitation is 40%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Monday
A 30 percent chance of rain. Mostly cloudy, with a high near 47.
Monday Night
A 30 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 29.
Tuesday
A 50 percent chance of rain. Mostly cloudy, with a high near 51.
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)
3:36 pm CST Feb 24, 2026
3pm CST Feb 24, 2026-6pm CST Mar 3, 2026



