Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Partly Cloudy
81°F
27°C
| Humidity | 53% |
| Wind Speed | S 17 mph |
| Barometer | 29.90 in (1012.2 mb) |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Heat Index | 82°F (28°C) |
| Last update | 3 Apr 3:54 pm CDT |
Extended Forecast for
St. Charles County Smartt Airport MO
This Afternoon
High: 81 °F
Chance
T-stormsTonight
Low: 54 °F
Chance
T-storms then
T-stormsSaturday
High: 59 °F
Showers
Likely then
Slight Chance
ShowersSaturday Night
Low: 36 °F
Mostly Clear
Sunday
High: 60 °F
Sunny
Sunday Night
Low: 38 °F
Clear
Monday
High: 62 °F
Sunny
Monday Night
Low: 35 °F
Mostly Cloudy
then Slight
Chance
Rain/SnowTuesday
High: 56 °F
Mostly Cloudy
Detailed Forecast
This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 5pm. Partly sunny, with a high near 81. South wind around 18 mph, with gusts as high as 28 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1am. Low around 54. South wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Saturday
Showers likely and possibly a thunderstorm before 11am, then a slight chance of showers between 11am and 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 59. West wind 11 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 36. West wind 8 to 14 mph, with gusts as high as 24 mph.
Sunday
Sunny, with a high near 60. Northwest wind 9 to 13 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 38.
Monday
Sunny, with a high near 62.
Monday Night
A slight chance of rain showers after 1am, mixing with snow after 4am. Mostly cloudy, with a low around 35. Chance of precipitation is 20%.
Tuesday
Mostly cloudy, with a high near 56.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
Partly sunny, with a high near 73.
Wednesday Night
Mostly clear, with a low around 52.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 76.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 53.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
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)
2:26 pm CDT Apr 3, 2026
4pm CDT Apr 3, 2026-6pm CDT Apr 10, 2026
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