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.

Fair

10°F

-12°C

Humidity 69%
Wind Speed NW 14 mph
Barometer 30.54 in (1034.9 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill-6°F (-21°C)
Last update 31 Jan 3:54 am CST
Extended Forecast for

Winfield MO

  • Today

    Today: Sunny, with a high near 22. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.

    High: 22 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 2. Northwest wind around 5 mph becoming calm in the evening.

    Low: 2 °F

    Mostly Clear

  • Sunday

    Sunday: A 20 percent chance of snow after noon. Increasing clouds, with a high near 31. Calm wind becoming south 5 to 9 mph in the morning.

    High: 31 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 17. South wind around 5 mph becoming calm in the evening.

    Low: 17 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 39. Calm wind becoming west around 5 mph.

    High: 39 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of snow. Mostly cloudy, with a high near 33.

    High: 33 °F

    Slight Chance
    Snow

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 15.

    Low: 15 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

Detailed Forecast

Today
Sunny, with a high near 22. Northwest wind 6 to 10 mph, with gusts as high as 20 mph.
Tonight
Mostly clear, with a low around 2. Northwest wind around 5 mph becoming calm in the evening.
Sunday
A 20 percent chance of snow after noon. Increasing clouds, with a high near 31. Calm wind becoming south 5 to 9 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 17. South wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 39. Calm wind becoming west around 5 mph.
Monday Night
Mostly cloudy, with a low around 24.
Tuesday
A 20 percent chance of snow. Mostly cloudy, with a high near 33.
Tuesday Night
Mostly cloudy, with a low around 15.
Wednesday
Partly sunny, with a high near 30.
Wednesday Night
Partly cloudy, with a low around 10.
Thursday
Mostly sunny, with a high near 36.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 43.
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:
4:06 am CST Jan 31, 2026
Forecast Valid:
4am CST Jan 31, 2026-6pm CST Feb 6, 2026
 
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