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.

Fair

53°F

12°C

Humidity 35%
Wind Speed W 5 mph
Barometer 30.15 in (1021.0 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill52°F (11°C)
Last update 12 Jan 4:54 pm CST
Extended Forecast for

4 Miles W Foley MO

  • Tonight

    Tonight: Mostly cloudy during the early evening, then becoming clear, with a low around 37. Southwest wind 3 to 8 mph. Winds could gust as high as 22 mph.

    Low: 37 °F

    Clear

  • Tuesday

    Tuesday: Increasing clouds, with a high near 59. West wind 9 to 14 mph, with gusts as high as 29 mph.

    High: 59 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 35. West wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 35 °F

    Chance Rain
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a temperature rising to near 39 by 11am, then falling to around 32 during the remainder of the day. Northwest wind 15 to 18 mph, with gusts as high as 36 mph.

    High: 39 °F⇓

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 17. North wind 8 to 14 mph, with gusts as high as 25 mph.

    Low: 17 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 31.

    High: 31 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Friday

    Friday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 40.

    High: 40 °F

    Partly Sunny
    then Slight
    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy during the early evening, then becoming clear, with a low around 37. Southwest wind 3 to 8 mph. Winds could gust as high as 22 mph.
Tuesday
Increasing clouds, with a high near 59. West wind 9 to 14 mph, with gusts as high as 29 mph.
Tuesday Night
A 30 percent chance of rain, mainly before 10pm. Cloudy, then gradually becoming partly cloudy, with a low around 35. West wind 10 to 14 mph, with gusts as high as 23 mph.
Wednesday
Partly sunny, with a temperature rising to near 39 by 11am, then falling to around 32 during the remainder of the day. Northwest wind 15 to 18 mph, with gusts as high as 36 mph.
Wednesday Night
Mostly clear, with a low around 17. North wind 8 to 14 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 31.
Thursday Night
Mostly cloudy, with a low around 25.
Friday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 40.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Partly sunny, with a high near 27.
Saturday Night
Partly cloudy, with a low around 8.
Sunday
Mostly sunny, with a high near 25.
Sunday Night
Partly cloudy, with a low around 12.
M.L.King Day
Mostly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles W Foley MO
 39.06°N 90.81°W (Elev. 600 ft)
Last Update:
4:46 pm CST Jan 12, 2026
Forecast Valid:
5pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation