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Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Partly Cloudy
79°F
26°C
| Humidity | 69% |
| Wind Speed | SW 6 mph |
| Barometer | 29.94 in (1013.4 mb) |
| Dewpoint | 68°F (20°C) |
| Visibility | 10.00 mi |
| Heat Index | 81°F (27°C) |
| Last update | 5 Jul 2:54 pm CDT |
Extended Forecast for
3 Miles WNW Winfield MO
This Afternoon

High: 86 °F
Chance
T-stormsTonight
Low: 67 °F
Chance
T-storms then
Partly CloudyMonday

High: 85 °F
Mostly Sunny
Monday Night

Low: 65 °F
Partly Cloudy
Tuesday

High: 86 °F
Sunny
Tuesday Night

Low: 66 °F
Clear
Wednesday

High: 90 °F
Sunny
Wednesday Night

Low: 71 °F
Mostly Clear
Thursday
High: 92 °F
Mostly Sunny
then Slight
Chance
T-storms
Detailed Forecast
This Afternoon
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Northwest wind 3 to 5 mph.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Partly cloudy, with a low around 67. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 85. Northeast wind 3 to 6 mph.
Monday Night
Partly cloudy, with a low around 65. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 86. Light north wind.
Tuesday Night
Clear, with a low around 66.
Wednesday
Sunny, with a high near 90.
Wednesday Night
Mostly clear, with a low around 71.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92.
Thursday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Saturday
A 20 percent chance of showers. Partly sunny, with a high near 87.
Saturday Night
Partly cloudy, with a low around 68.
Sunday
Mostly sunny, with a high near 89.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles WNW Winfield MO
39.01°N 90.81°W (Elev. 600 ft)
39.01°N 90.81°W (Elev. 600 ft)
2:31 pm CDT Jul 5, 2026
3pm CDT Jul 5, 2026-6pm CDT Jul 12, 2026


