Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

58°F

14°C

Humidity 36%
Wind Speed W 8 G 16 mph
Barometer 30.29 in (1025.8 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 5 Apr 2:54 pm CDT
Extended Forecast for

Winfield MO

  • Tonight

    Tonight: Clear, with a low around 39. Northwest wind 5 to 9 mph becoming light and variable.

    Low: 39 °F

    Clear

  • Monday

    Monday: A slight chance of showers between 3pm and 4pm.  Increasing clouds, with a high near 60. Northwest wind 6 to 10 mph.  Chance of precipitation is 20%.

    High: 60 °F

    Sunny then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A chance of rain showers after midnight, mixing with snow after 4am.  Mostly cloudy, with a low around 37. North wind 8 to 11 mph, with gusts as high as 21 mph.  Chance of precipitation is 30%.

    Low: 37 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tuesday

    Tuesday: A 30 percent chance of snow showers before 7am.  Mostly cloudy, with a high near 53. East wind 7 to 9 mph.

    High: 53 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 41. East wind around 8 mph.

    Low: 41 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 1am.  Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 74. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 56.

    Low: 56 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Clear, with a low around 39. Northwest wind 5 to 9 mph becoming light and variable.
Monday
A slight chance of showers between 3pm and 4pm. Increasing clouds, with a high near 60. Northwest wind 6 to 10 mph. Chance of precipitation is 20%.
Monday Night
A chance of rain showers after midnight, mixing with snow after 4am. Mostly cloudy, with a low around 37. North wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Tuesday
A 30 percent chance of snow showers before 7am. Mostly cloudy, with a high near 53. East wind 7 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 41. East wind around 8 mph.
Wednesday
Mostly sunny, with a high near 74.
Wednesday Night
A 20 percent chance of showers after 1am. Partly cloudy, with a low around 54.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 74. Chance of precipitation is 30%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 56.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 74.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Saturday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 80.
Saturday Night
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
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ABOUT THIS FORECAST

 
Point Forecast:
Winfield MO
 38.99°N 90.73°W (Elev. 433 ft)
1:26 pm CDT Apr 5, 2026
3pm CDT Apr 5, 2026-6pm CDT Apr 12, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database