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 41%
Wind Speed Calm
Barometer 30.48 in (1032.0 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 17 Oct 3:54 pm CDT
Extended Forecast for

3 Miles ESE Winfield MO

  • Tonight

    Tonight: Patchy fog after 5am.  Otherwise, clear, with a low around 38. Light southeast wind.

    Low: 38 °F

    Clear then
    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 8am.  Otherwise, sunny, with a high near 70. South wind 3 to 7 mph.

    High: 70 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39. Southeast wind around 5 mph becoming calm  in the evening.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 74. Light and variable wind.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42. Calm wind.

    Low: 42 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 5am. Otherwise, clear, with a low around 38. Light southeast wind.
Sunday
Patchy fog before 8am. Otherwise, sunny, with a high near 70. South wind 3 to 7 mph.
Sunday Night
Clear, with a low around 39. Southeast wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 74. Light and variable wind.
Monday Night
Mostly clear, with a low around 42. Calm wind.
Tuesday
Mostly sunny, with a high near 76.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 50.
Friday
Sunny, with a high near 80.
Friday Night
Partly cloudy, with a low around 51.
Saturday
Mostly sunny, with a high near 80.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ESE Winfield MO
 38.99°N 90.7°W (Elev. 433 ft)
2:20 pm CDT Oct 17, 2026
4pm CDT Oct 17, 2026-6pm CDT Oct 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database