Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Rain Fog/Mist
48°F
9°C
| Humidity | 96% |
| Wind Speed | SE 13 mph |
| Barometer | 29.93 in (1013.6 mb) |
| Dewpoint | 47°F (8°C) |
| Visibility | 4.00 mi |
| Wind Chill | 43°F (6°C) |
| Last update | 5 Mar 12:54 am CST |
Extended Forecast for
St. Charles County Smartt Airport MO
Overnight

Low: 50 °F
Showers and
Patchy FogThursday
High: 67 °F
Chance
Showers and
Patchy Fog
then Mostly
CloudyThursday Night

Low: 52 °F
Chance
T-stormsFriday

High: 80 °F
Chance Rain
and BreezyFriday Night
Low: 55 °F
Chance
T-storms then
RainSaturday
High: 64 °F
Chance Rain
then Partly
SunnySaturday Night

Low: 36 °F
Partly Cloudy
Sunday

High: 67 °F
Sunny
Sunday Night

Low: 44 °F
Mostly Clear
Detailed Forecast
Overnight
Showers and possibly a thunderstorm. Patchy fog. Low around 50. Light and variable wind becoming southeast around 5 mph. Chance of precipitation is 90%.
Thursday
A 40 percent chance of showers and thunderstorms, mainly before 8am. Patchy fog before 11am. Otherwise, mostly cloudy, with a high near 67. West wind 5 to 8 mph becoming light and variable in the afternoon.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 52. Light southeast wind increasing to 5 to 9 mph in the evening.
Friday
A chance of rain and thunderstorms. Partly sunny, with a high near 80. Breezy, with a south wind 10 to 20 mph, with gusts as high as 32 mph. Chance of precipitation is 30%.
Friday Night
A chance of rain and thunderstorms, then rain and possibly a thunderstorm after midnight. Low around 55. South wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Saturday
A 40 percent chance of rain before noon. Mostly cloudy, with a high near 64.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Sunny, with a high near 67.
Sunday Night
Mostly clear, with a low around 44.
Monday
Sunny, with a high near 77.
Monday Night
A 30 percent chance of rain and thunderstorms. Mostly clear, with a low around 55.
Tuesday
Rain and possibly a thunderstorm. High near 76. Chance of precipitation is 80%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 47. Chance of precipitation is 90%.
Wednesday
Rain likely. Mostly cloudy, with a high near 59. Chance of precipitation is 70%.
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)
12:26 am CST Mar 5, 2026
1am CST Mar 5, 2026-6pm CDT Mar 11, 2026



