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

71°F

22°C

Humidity 71%
Wind Speed SW 16 G 26 mph
Barometer 29.53 in (999.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 28 Dec 11:54 am CST
Extended Forecast for

Winfield MO

Wind Advisory December 28, 03:00pm until December 29, 06:00am
Click here for hazard details and duration
Wind Advisory

  • This Afternoon

    This Afternoon: A chance of rain and thunderstorms before 4pm, then a slight chance of rain between 4pm and 5pm. Cloudy, with a temperature falling to around 46 by 5pm. Breezy, with a southwest wind 15 to 22 mph becoming west. Winds could gust as high as 37 mph. Chance of precipitation is 30%.

    High: 70 °F⇓

    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 17. Breezy, with a west wind around 24 mph, with gusts as high as 43 mph.

    Low: 17 °F

    Decreasing
    Clouds and
    Breezy

  • Monday

    Monday: Partly sunny, with a high near 29. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 37 mph.

    High: 29 °F

    Partly Sunny
    and Blustery

  • Monday Night

    Monday Night: Mostly clear, with a low around 16. Northwest wind 6 to 13 mph, with gusts as high as 24 mph.

    Low: 16 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 36. West wind 6 to 9 mph.

    High: 36 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 24.

    Low: 24 °F

    Partly Cloudy

  • New Year's Day

    New Year's Day: Mostly sunny, with a high near 40.

    High: 40 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A chance of rain and thunderstorms before 4pm, then a slight chance of rain between 4pm and 5pm. Cloudy, with a temperature falling to around 46 by 5pm. Breezy, with a southwest wind 15 to 22 mph becoming west. Winds could gust as high as 37 mph. Chance of precipitation is 30%.
Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 17. Breezy, with a west wind around 24 mph, with gusts as high as 43 mph.
Monday
Partly sunny, with a high near 29. Blustery, with a northwest wind 14 to 22 mph, with gusts as high as 37 mph.
Monday Night
Mostly clear, with a low around 16. Northwest wind 6 to 13 mph, with gusts as high as 24 mph.
Tuesday
Mostly sunny, with a high near 36. West wind 6 to 9 mph.
Tuesday Night
Mostly clear, with a low around 27.
Wednesday
Partly sunny, with a high near 43.
Wednesday Night
Partly cloudy, with a low around 24.
New Year's Day
Mostly sunny, with a high near 40.
Thursday Night
Mostly clear, with a low around 20.
Friday
Partly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 30.
Saturday
Partly sunny, with a high near 49.
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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:
10:41 am CST Dec 28, 2025
Forecast Valid:
12pm CST Dec 28, 2025-6pm CST Jan 3, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation