Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
46°F
8°C
| Humidity | 54% |
| Wind Speed | N 14 mph |
| Barometer | 30.37 in (1028.3 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 40°F (4°C) |
| Last update | 7 Apr 3:54 am CDT |
Extended Forecast for
St. Charles County Smartt Airport MO
Overnight
Low: 44 °F
Cloudy
Tuesday
High: 55 °F
Slight Chance
Rain then
Partly SunnyTuesday Night
Low: 39 °F
Mostly Cloudy
Wednesday
High: 73 °F
Partly Sunny
Wednesday Night
Low: 52 °F
Partly Cloudy
Thursday
High: 77 °F
Sunny then
Slight Chance
ShowersThursday Night
Low: 55 °F
Mostly Cloudy
then Slight
Chance
ShowersFriday
High: 71 °F
Showers
LikelyFriday Night
Low: 52 °F
Chance
T-storms
Detailed Forecast
Overnight
Cloudy, with a steady temperature around 44. North wind around 13 mph, with gusts as high as 22 mph.
Tuesday
A 20 percent chance of rain before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 55. East wind 10 to 13 mph, with gusts as high as 20 mph.
Tuesday Night
Mostly cloudy, with a low around 39. East wind around 10 mph.
Wednesday
Partly sunny, with a high near 73. South wind 10 to 17 mph, with gusts as high as 25 mph.
Wednesday Night
Partly cloudy, with a low around 52. South wind 10 to 13 mph.
Thursday
A 20 percent chance of showers after 1pm. Sunny, with a high near 77.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 55.
Friday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 75.
Saturday Night
Mostly cloudy, with a low around 57.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 61.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
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)
3:31 am CDT Apr 7, 2026
4am CDT Apr 7, 2026-6pm CDT Apr 13, 2026
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