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.

Mostly Cloudy

74°F

23°C

Humidity 62%
Wind Speed S 14 mph
Barometer 29.90 in (1012.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 3 Apr 10:54 pm CDT
Extended Forecast for

Winfield MO

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 51. South wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.

    Low: 51 °F

    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 10am, then a slight chance of showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 60. West wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely then
    Partly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 37. West wind 7 to 14 mph, with gusts as high as 23 mph.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 60. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 60 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 39. West wind 3 to 6 mph.

    Low: 39 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 55.

    High: 55 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41.

    Low: 41 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 2am. Low around 51. South wind 5 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 100%.
Saturday
Showers likely and possibly a thunderstorm before 10am, then a slight chance of showers between 10am and 11am. Cloudy, then gradually becoming mostly sunny, with a high near 60. West wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%.
Saturday Night
Mostly clear, with a low around 37. West wind 7 to 14 mph, with gusts as high as 23 mph.
Sunday
Sunny, with a high near 60. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Sunday Night
Clear, with a low around 39. West wind 3 to 6 mph.
Monday
Sunny, with a high near 62.
Monday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 36.
Tuesday
Mostly cloudy, with a high near 55.
Tuesday Night
Mostly cloudy, with a low around 41.
Wednesday
Partly sunny, with a high near 74.
Wednesday Night
Mostly clear, with a low around 54.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 75.
Thursday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Friday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
Winfield MO
 38.99°N 90.73°W (Elev. 433 ft)
Last Update:
10:26 pm CDT Apr 3, 2026
Forecast Valid:
11pm CDT Apr 3, 2026-6pm CDT Apr 10, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation