Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
80°F
27°C
| Humidity | 47% |
| Wind Speed | S 17 mph |
| Barometer | 29.72 in (1006.2 mb) |
| Dewpoint | 58°F (14°C) |
| Visibility | 10.00 mi |
| Heat Index | 81°F (27°C) |
| Last update | 9 Mar 2:54 pm CDT |
Extended Forecast for
St. Charles County Smartt Airport MO
Tonight
Low: 58 °F
Partly Cloudy
Tuesday
High: 82 °F
Mostly Sunny
then Slight
Chance
T-stormsTuesday Night
Low: 52 °F
Showers
Likely then
T-stormsWednesday
High: 60 °F⇓
Showers
Wednesday Night
Low: 30 °F
Mostly Cloudy
Thursday
High: 57 °F
Sunny
Thursday Night
Low: 42 °F
Mostly Cloudy
Friday
High: 64 °F
Mostly Cloudy
Friday Night
Low: 38 °F
Mostly Cloudy
Detailed Forecast
Tonight
Partly cloudy, with a low around 58. South wind 8 to 14 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 82. South wind 7 to 17 mph, with gusts as high as 26 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 10pm. Low around 52. South wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Wednesday
Showers and possibly a thunderstorm. Temperature rising to near 60 by 10am, then falling to around 49 during the remainder of the day. Southwest wind 13 to 18 mph becoming northwest in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, with a low around 30. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 24 mph.
Thursday
Sunny, with a high near 57.
Thursday Night
Mostly cloudy, with a low around 42.
Friday
Mostly cloudy, with a high near 64.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 70.
Saturday Night
A 20 percent chance of rain. Partly cloudy, with a low around 47.
Sunday
A 50 percent chance of rain. Mostly cloudy, with a high near 62. Breezy.
Sunday Night
A chance of rain and snow. Partly cloudy, with a low around 26. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 41.
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)
3:11 pm CDT Mar 9, 2026
3pm CDT Mar 9, 2026-6pm CDT Mar 16, 2026
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