Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

47°F

8°C

Humidity 66%
Wind Speed NE 5 mph
Barometer 29.62 in (1002.8 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 18 Feb 10:54 pm CST
Extended Forecast for

Winfield MO

  • Tonight

    Tonight: Mostly cloudy, with a low around 45. Calm wind.

    Low: 45 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before noon.  Partly sunny, with a high near 71. Light and variable wind becoming southwest 12 to 17 mph in the morning. Winds could gust as high as 30 mph.  Chance of precipitation is 60%.

    High: 71 °F

    Showers
    Likely then
    Isolated
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33. West wind 10 to 17 mph, with gusts as high as 30 mph.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 48. West wind 6 to 15 mph, with gusts as high as 26 mph.

    High: 48 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28. Northwest wind 3 to 6 mph.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain and snow after noon.  Mostly sunny, with a high near 44. Chance of precipitation is 20%.

    High: 44 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 23.

    Low: 23 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 39.

    High: 39 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 18.

    Low: 18 °F

    Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 45. Calm wind.
Thursday
Showers and thunderstorms likely, mainly before noon. Partly sunny, with a high near 71. Light and variable wind becoming southwest 12 to 17 mph in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 33. West wind 10 to 17 mph, with gusts as high as 30 mph.
Friday
Sunny, with a high near 48. West wind 6 to 15 mph, with gusts as high as 26 mph.
Friday Night
Partly cloudy, with a low around 28. Northwest wind 3 to 6 mph.
Saturday
A slight chance of rain and snow after noon. Mostly sunny, with a high near 44. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 23.
Sunday
Sunny, with a high near 39.
Sunday Night
Clear, with a low around 18.
Monday
Sunny, with a high near 38.
Monday Night
Mostly clear, with a low around 21.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Winfield MO
 38.99°N 90.73°W (Elev. 433 ft)
9:36 pm CST Feb 18, 2026
11pm CST Feb 18, 2026-6pm CST Feb 25, 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