Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair and Breezy
85°F
29°C
| Humidity | 48% |
| Wind Speed | S 21 G 28 mph |
| Barometer | 29.76 in (1007.2 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 10.00 mi |
| Heat Index | 86°F (30°C) |
| Last update | 10 Mar 1:54 pm CDT |
Extended Forecast for
St. Charles County Smartt Airport MO
This Afternoon
High: 83 °F
Mostly Sunny
Tonight
Low: 51 °F
Mostly Cloudy
then T-storms
LikelyWednesday
High: 67 °F⇓
T-storms then
Chance Rain
and BreezyWednesday Night
Low: 30 °F
Partly Cloudy
Thursday
High: 56 °F
Sunny
Thursday Night
Low: 41 °F
Mostly Cloudy
Friday
High: 60 °F
Partly Sunny
Friday Night
Low: 35 °F
Mostly Cloudy
Saturday
High: 67 °F
Partly Sunny
Detailed Forecast
This Afternoon
Mostly sunny, with a high near 83. South wind 16 to 18 mph, with gusts as high as 28 mph.
Tonight
Showers and thunderstorms likely, mainly after 4am. Increasing clouds, with a low around 51. South wind 11 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Wednesday
Rain and possibly a thunderstorm before 3pm, then a slight chance of rain between 3pm and 4pm. Temperature falling to around 50 by 4pm. Breezy, with a southwest wind 14 to 21 mph becoming northwest in the morning. Winds could gust as high as 31 mph. Chance of precipitation is 90%.
Wednesday Night
Partly 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 28 mph.
Thursday
Sunny, with a high near 56. Light west wind becoming southwest 6 to 11 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 41.
Friday
Partly sunny, with a high near 60.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Partly sunny, with a high near 67.
Saturday Night
A 30 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 47.
Sunday
Rain and possibly a thunderstorm. High near 65. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 21. Blustery. Chance of precipitation is 30%.
Monday
Sunny, with a high near 37.
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)
2:06 pm CDT Mar 10, 2026
2pm CDT Mar 10, 2026-6pm CDT Mar 16, 2026
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