Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
69°F
21°C
| Humidity | 35% |
| Wind Speed | S 12 mph |
| Barometer | 30.04 in (1017.2 mb) |
| Dewpoint | 40°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 8 Apr 7:54 pm CDT |
Extended Forecast for
St. Charles County Smartt Airport MO
Tonight

Low: 52 °F
Mostly Clear
Thursday

High: 80 °F
Sunny
Thursday Night
Low: 56 °F
Partly Cloudy
then Slight
Chance
ShowersFriday

High: 70 °F
Showers
LikelyFriday Night

Low: 49 °F
Chance
ShowersSaturday

High: 74 °F
Chance
ShowersSaturday Night

Low: 59 °F
Mostly Cloudy
Sunday
High: 80 °F
Mostly Cloudy
then Chance
ShowersSunday Night
Low: 62 °F
Slight Chance
T-storms then
Chance
Showers
Detailed Forecast
Tonight
Mostly clear, with a low around 52. South wind 7 to 11 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 80. Southwest wind 8 to 11 mph.
Thursday Night
A 20 percent chance of showers after 1am. Increasing clouds, with a low around 56. South wind around 10 mph.
Friday
Showers likely, with thunderstorms also possible after 10am. Mostly cloudy, with a high near 70. Southwest wind 8 to 10 mph becoming northwest in the afternoon. 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 49. Northeast wind around 7 mph. Chance of precipitation is 40%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 74.
Saturday Night
Mostly cloudy, with a low around 59.
Sunday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 80.
Sunday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62.
Monday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 84.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 53. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 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)
6:46 pm CDT Apr 8, 2026
8pm CDT Apr 8, 2026-6pm CDT Apr 15, 2026



