Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
A Few Clouds
30°C
86°F
| Humidity | 63% |
| Wind Speed | E 9 km/h |
| Barometer | 1016.3 mb (30.03 in) |
| Dewpoint | 22°C (72°F) |
| Visibility | 16 km |
| Heat Index | 33°C (92°F) |
| Last update | 16 Jul 3:54 pm CDT |
Extended Forecast for
St. Charles County Smartt Airport MO
This Afternoon
High: 32 °C
Chance
T-stormsTonight
Low: 23 °C
Chance
T-storms then
Partly CloudyFriday
High: 32 °C
Chance
T-stormsFriday Night
Low: 23 °C
Slight Chance
T-storms then
Mostly ClearSaturday
High: 33 °C
Mostly Sunny
then Slight
Chance
T-stormsSaturday Night
Low: 23 °C
Slight Chance
T-stormsSunday
High: 32 °C
Sunny then
Slight Chance
T-stormsSunday Night
Low: 22 °C
Mostly Clear
Monday
High: 35 °C
Mostly Sunny
Detailed Forecast
This Afternoon
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 32. North wind around 10 km/h.
Tonight
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 23. Calm wind.
Friday
A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny, with a high near 32. Light west wind increasing to 8 to 13 km/h in the morning.
Friday Night
A 20 percent chance of showers and thunderstorms before 9pm. Mostly clear, with a low around 23. Southwest wind 5 to 13 km/h.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 33. West wind 13 to 21 km/h.
Saturday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 23.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 32.
Sunday Night
Mostly clear, with a low around 22.
Monday
Mostly sunny, with a high near 35.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 34.
Tuesday Night
Partly cloudy, with a low around 21.
Wednesday
Mostly sunny, with a high near 29.
Wednesday Night
Mostly clear, with a low around 18.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 30.
Additional Forecasts and Information
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Point Forecast:
St. Charles County Smartt Airport MO
38.94°N 90.45°W (Elev. 427 m)
38.94°N 90.45°W (Elev. 427 m)
3:12 pm CDT Jul 16, 2026
4pm CDT Jul 16, 2026-6pm CDT Jul 23, 2026
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