Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
58°F
14°C
| Humidity | 93% |
| Wind Speed | E 5 mph |
| Barometer | 29.73 in (1006.5 mb) |
| Dewpoint | 56°F (13°C) |
| Visibility | 10.00 mi |
| Last update | 27 Dec 10:54 pm CST |
Extended Forecast for
5 Miles SSW St. Charles County Smartt Airport MO
Tonight

Low: 55 °F
Slight Chance
T-stormsSunday
High: 68 °F⇓
Chance
Showers then
Showers
Likely and
BreezySunday Night

Low: 18 °F
Gradual
Clearing and
BreezyMonday

High: 28 °F
Mostly Sunny
and BreezyMonday Night

Low: 16 °F
Mostly Clear
Tuesday

High: 34 °F
Sunny
Tuesday Night

Low: 26 °F
Mostly Clear
Wednesday

High: 44 °F
Mostly Sunny
Wednesday Night

Low: 25 °F
Partly Cloudy
Detailed Forecast
Tonight
A slight chance of showers before 3am, then a slight chance of showers and thunderstorms between 3am and 5am. Cloudy, with a low around 55. South wind around 8 mph. Chance of precipitation is 20%.
Sunday
Showers and thunderstorms likely, mainly before 3pm. Cloudy, with a temperature rising to near 68 by noon, then falling to around 48 during the remainder of the day. Breezy, with a south wind 8 to 13 mph becoming west 19 to 24 mph in the afternoon. Winds could gust as high as 37 mph. Chance of precipitation is 60%.
Sunday Night
Cloudy during the early evening, then gradual clearing, with a low around 18. Breezy, with a west wind around 26 mph, with gusts as high as 39 mph.
Monday
Mostly sunny, with a high near 28. Breezy, with a northwest wind 17 to 25 mph, with gusts as high as 37 mph.
Monday Night
Mostly clear, with a low around 16. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tuesday
Sunny, with a high near 34.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Mostly sunny, with a high near 44.
Wednesday Night
Partly cloudy, with a low around 25.
New Year's Day
Mostly sunny, with a high near 38.
Thursday Night
Partly cloudy, with a low around 19.
Friday
Partly sunny, with a high near 42.
Friday Night
Mostly cloudy, with a low around 28.
Saturday
Mostly cloudy, with a high near 47.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
ABOUT THIS FORECAST
Point Forecast:
5 Miles SSW St. Charles County Smartt Airport MO
38.87°N 90.48°W (Elev. 436 ft)
38.87°N 90.48°W (Elev. 436 ft)
10:51 pm CST Dec 27, 2025
11pm CST Dec 27, 2025-6pm CST Jan 3, 2026



