Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
54°F
12°C
| Humidity | 97% |
| Wind Speed | E 7 mph |
| Barometer | 29.85 in (1010.5 mb) |
| Dewpoint | 53°F (12°C) |
| Visibility | 8.00 mi |
| Wind Chill | 52°F (11°C) |
| Last update | 10 Mar 5:54 am CDT |
Extended Forecast for
St. Charles County Smartt Airport MO
Today

High: 85 °F
Sunny
Tonight
Low: 51 °F
Slight Chance
T-storms then
T-stormsWednesday
High: 61 °F⇓
T-storms then
Showers
Likely and
BreezyWednesday Night

Low: 30 °F
Partly Cloudy
Thursday

High: 57 °F
Sunny
Thursday Night

Low: 43 °F
Mostly Cloudy
Friday

High: 63 °F
Partly Sunny
Friday Night

Low: 37 °F
Mostly Cloudy
Saturday

High: 68 °F
Partly Sunny
Detailed Forecast
Today
Sunny, with a high near 85. Southeast wind 5 to 10 mph becoming south 12 to 17 mph in the afternoon. Winds could gust as high as 28 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 51. Southwest wind around 14 mph, with gusts as high as 30 mph. Chance of precipitation is 80%.
Wednesday
Showers and possibly a thunderstorm before 1pm, then a chance of showers. Temperature falling to around 50 by 5pm. Breezy, with a southwest wind 11 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 100%.
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 25 mph.
Thursday
Sunny, with a high near 57. Light and variable wind becoming southwest 6 to 11 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 43.
Friday
Partly sunny, with a high near 63.
Friday Night
Mostly cloudy, with a low around 37.
Saturday
Partly sunny, with a high near 68.
Saturday Night
A 20 percent chance of rain after 1am. Partly cloudy, with a low around 45.
Sunday
Rain likely. Cloudy, with a high near 60. Breezy. Chance of precipitation is 70%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 22. Blustery. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 38.
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)
5:31 am CDT Mar 10, 2026
6am CDT Mar 10, 2026-6pm CDT Mar 16, 2026



