Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
52°F
11°C
| Humidity | 97% |
| Wind Speed | Calm |
| Barometer | 29.98 in (1015.3 mb) |
| Dewpoint | 51°F (11°C) |
| Visibility | 8.00 mi |
| Last update | 4 Mar 8:54 pm CST |
Extended Forecast for
St. Charles County Smartt Airport MO
Tonight

Low: 48 °F
T-storms and
Patchy FogThursday
High: 67 °F
Scattered
Showers and
Patchy Fog
then Partly
SunnyThursday Night
Low: 52 °F
Chance
Showers then
Showers
LikelyFriday

High: 78 °F
Scattered
ShowersFriday Night
Low: 52 °F
Scattered
T-storms then
ShowersSaturday
High: 64 °F
Scattered
Showers then
Partly SunnySaturday Night

Low: 38 °F
Partly Cloudy
Sunday

High: 65 °F
Sunny
Sunday Night

Low: 45 °F
Mostly Clear
Detailed Forecast
Tonight
Showers and thunderstorms, mainly before 4am, then showers likely and possibly a thunderstorm after 4am. Patchy fog. Low around 48. Light and variable wind. Chance of precipitation is 80%.
Thursday
Scattered showers, mainly before 7am. Patchy fog before 9am. Otherwise, mostly cloudy, with a high near 67. Light and variable wind becoming west 5 to 8 mph. Chance of precipitation is 40%.
Thursday Night
A chance of showers before midnight, then showers likely and possibly a thunderstorm between midnight and 3am, then a slight chance of showers and thunderstorms after 3am. Mostly cloudy, with a low around 52. Calm wind becoming southeast 5 to 9 mph in the evening. Chance of precipitation is 60%.
Friday
Scattered showers, mainly before noon. Partly sunny, with a high near 78. South wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Friday Night
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 52. South wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Saturday
Scattered showers before noon. Mostly cloudy, with a high near 64. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 38.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 45.
Monday
Sunny, with a high near 76.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Tuesday
Showers and possibly a thunderstorm. High near 75. Chance of precipitation is 80%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 43. Chance of precipitation is 90%.
Wednesday
Showers likely. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
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)
8:47 pm CST Mar 4, 2026
9pm CST Mar 4, 2026-6pm CDT Mar 11, 2026



