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.

Partly Cloudy

87°F

31°C

Humidity 42%
Wind Speed SE 6 mph
Barometer 30.17 in (1021.0 mb)
Dewpoint 61°F (16°C)
Visibility 9.00 mi
Heat Index87°F (31°C)
Last update 3 Oct 1:54 pm CDT
Extended Forecast for

3 Miles WSW Winfield MO

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Mostly sunny, with a high near 89. South wind around 6 mph.

    High: 89 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly clear, with a low around 62. Calm wind becoming south around 5 mph.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 85. Light south wind increasing to 5 to 10 mph in the morning.

    High: 85 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 58. South wind 5 to 7 mph.

    Low: 58 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 86. South wind 6 to 10 mph, with gusts as high as 21 mph.

    High: 86 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85.

    High: 85 °F

    Sunny then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 62.

    Low: 62 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 77.

    High: 77 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Mostly sunny, with a high near 89. South wind around 6 mph.
Tonight
Mostly clear, with a low around 62. Calm wind becoming south around 5 mph.
Saturday
Sunny, with a high near 85. Light south wind increasing to 5 to 10 mph in the morning.
Saturday Night
Clear, with a low around 58. South wind 5 to 7 mph.
Sunday
Sunny, with a high near 86. South wind 6 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 62.
Monday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 85.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 62.
Tuesday
A 30 percent chance of showers, mainly before 1pm. Partly sunny, with a high near 77.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Sunny, with a high near 75.
Wednesday Night
Mostly clear, with a low around 51.
Thursday
Sunny, with a high near 75.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WSW Winfield MO
 38.99°N 90.79°W (Elev. 499 ft)
Last Update:
2:36 pm CDT Oct 3, 2025
Forecast Valid:
2pm CDT Oct 3, 2025-6pm CDT Oct 9, 2025
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation