National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Winfield MO

  • Overnight

    Overnight: A slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 86. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 50%.

    High: 86 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. Light southeast wind.

    Low: 73 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 92. Heat index values as high as 106. Southwest wind 3 to 7 mph.

    High: 92 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm in the evening.

    Low: 75 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

    High: 93 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.

    Low: 75 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Overnight
A slight chance of showers between 1am and 4am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 20%.
Friday
A chance of showers, with thunderstorms also possible after 10am. Partly sunny, with a high near 86. Calm wind becoming east around 5 mph in the afternoon. Chance of precipitation is 50%.
Friday Night
A 40 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 73. Light southeast wind.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 92. Heat index values as high as 106. Southwest wind 3 to 7 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. Southwest wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 76.
Tuesday
Sunny, with a high near 96.
Tuesday Night
Mostly clear, with a low around 76.
Wednesday
Sunny and hot, with a high near 98.
Wednesday Night
Mostly clear, with a low around 76.
Thursday
Sunny and hot, with a high near 97.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winfield MO
 38.99°N 90.73°W (Elev. 433 ft)
Last Update:
10:21 pm CDT Jul 17, 2025
Forecast Valid:
12am CDT Jul 18, 2025-6pm CDT Jul 24, 2025
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation