Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
40°F
4°C
| Humidity | 77% |
| Wind Speed | E 8 mph |
| Barometer | 30.24 in (1023.9 mb) |
| Dewpoint | 33°F (1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 35°F (2°C) |
| Last update | 8 Apr 2:54 am CDT |
Extended Forecast for
St. Charles County Smartt Airport MO
Overnight
Low: 40 °F
Mostly Clear
Wednesday
High: 75 °F
Mostly Sunny
Wednesday Night
Low: 52 °F
Mostly Clear
Thursday
High: 78 °F
Mostly Sunny
Thursday Night
Low: 57 °F
Mostly Cloudy
then Chance
ShowersFriday
High: 70 °F
Showers
LikelyFriday Night
Low: 51 °F
Chance
ShowersSaturday
High: 73 °F
Chance
ShowersSaturday Night
Low: 57 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 40. Southeast wind 8 to 10 mph.
Wednesday
Mostly sunny, with a high near 75. Southeast wind 9 to 17 mph becoming south in the afternoon. Winds could gust as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 52. South wind 10 to 14 mph.
Thursday
Mostly sunny, with a high near 78. South wind 8 to 10 mph.
Thursday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 57. South wind 6 to 10 mph.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 70. Chance of precipitation is 70%.
Friday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 73. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 57.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Breezy.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Tuesday
Showers and thunderstorms likely. Partly sunny, with a high near 81. Chance of precipitation is 60%.
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)
2:21 am CDT Apr 8, 2026
3am CDT Apr 8, 2026-6pm CDT Apr 14, 2026
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