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.

Overcast

23°F

-5°C

Humidity 85%
Wind Speed E 6 mph
Barometer 30.41 in (1030.2 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Wind Chill16°F (-9°C)
Last update 1 Dec 7:54 am CST
Extended Forecast for

Winfield MO

  • Today

    Today: Snow, mainly after 2pm. High near 29. Southeast wind around 5 mph becoming calm in the morning. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

    High: 29 °F

    Slight Chance
    Snow then
    Snow

  • Tonight

    Tonight: Snow, mainly before 10pm. Low around 17. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 17 °F

    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 32. Northwest wind around 6 mph becoming south in the afternoon.

    High: 32 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20. South wind 3 to 5 mph.

    Low: 20 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 39. South wind around 6 mph becoming northwest in the afternoon.

    High: 39 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 22.

    High: 22 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Friday

    Friday: A 30 percent chance of snow. Mostly cloudy, with a high near 34.

    High: 34 °F

    Chance Snow

Detailed Forecast

Today
Snow, mainly after 2pm. High near 29. Southeast wind around 5 mph becoming calm in the morning. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Snow, mainly before 10pm. Low around 17. Calm wind becoming west around 5 mph after midnight. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Tuesday
Mostly sunny, with a high near 32. Northwest wind around 6 mph becoming south in the afternoon.
Tuesday Night
Partly cloudy, with a low around 20. South wind 3 to 5 mph.
Wednesday
Mostly cloudy, with a high near 39. South wind around 6 mph becoming northwest in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 11.
Thursday
Mostly sunny, with a high near 22.
Thursday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 11.
Friday
A 30 percent chance of snow. Mostly cloudy, with a high near 34.
Friday Night
Mostly cloudy, with a low around 24.
Saturday
Partly sunny, with a high near 39.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Mostly cloudy, with a high near 35.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winfield MO
 38.99°N 90.73°W (Elev. 433 ft)
Last Update:
4:36 am CST Dec 1, 2025
Forecast Valid:
8am CST Dec 1, 2025-6pm CST Dec 7, 2025
 
Forecast Discussion
 
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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