National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Overcast

54°F

12°C

Humidity 83%
Wind Speed S 18 mph
Barometer 29.67 in (1004.8 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Wind Chill49°F (9°C)
Last update 17 Feb 5:54 pm CST
Extended Forecast for

3 Miles N Foley MO

  • Tonight

    Tonight: A slight chance of showers between 11pm and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 53. South wind 14 to 17 mph becoming southwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 20%.

    Low: 53 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: Sunny, with a high near 69. West wind 5 to 11 mph, with gusts as high as 23 mph.

    High: 69 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear during the early evening, then becoming mostly cloudy, with a low around 46. South wind 3 to 6 mph.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 70. Southeast wind 6 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%.

    High: 70 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. West wind 10 to 15 mph, with gusts as high as 26 mph.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of snow. Partly sunny, with a high near 40.

    High: 40 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly before midnight. Partly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow

Detailed Forecast

Tonight
A slight chance of showers between 11pm and 3am. Cloudy, then gradually becoming partly cloudy, with a low around 53. South wind 14 to 17 mph becoming southwest after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 69. West wind 5 to 11 mph, with gusts as high as 23 mph.
Wednesday Night
Clear during the early evening, then becoming mostly cloudy, with a low around 46. South wind 3 to 6 mph.
Thursday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 70. Southeast wind 6 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%.
Thursday Night
Mostly clear, with a low around 34. West wind 10 to 15 mph, with gusts as high as 26 mph.
Friday
Sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 29.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 40.
Saturday Night
A 30 percent chance of snow, mainly before midnight. Partly cloudy, with a low around 24.
Sunday
Sunny, with a high near 36.
Sunday Night
Mostly clear, with a low around 18.
Monday
Sunny, with a high near 37.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Mostly sunny, with a high near 47.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles N Foley MO
 39.08°N 90.75°W (Elev. 600 ft)
Last Update:
5:11 pm CST Feb 17, 2026
Forecast Valid:
6pm CST Feb 17, 2026-6pm CST Feb 24, 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