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.

Light Snow Fog/Mist

24°F

-4°C

Humidity 91%
Wind Speed Calm
Barometer 30.10 in (1019.8 mb)
Dewpoint 22°F (-6°C)
Visibility 2.00 mi
Last update 1 Dec 7:54 pm CST
Extended Forecast for

2 Miles SW Foley MO

Winter Weather Advisory December 1, 08:51pm until December 2, 12:00am
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory December 1, 08:51pm until December 2, 12:00am

    NOW until 12:00am Tue

    Winter Weather Advisory

  • Tonight

    Low: 16 °F

    Snow then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 27. Northwest wind around 5 mph becoming light and variable in the afternoon.

    High: 27 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 20. South wind 3 to 5 mph.

    Low: 20 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain after noon, mixing with snow after 3pm. Mostly cloudy, with a high near 37. South wind around 6 mph becoming northwest in the afternoon. Chance of precipitation is 20%.

    High: 37 °F

    Partly Sunny
    then Slight
    Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 8. North wind 6 to 10 mph.

    Low: 8 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny and cold, with a high near 19.

    High: 19 °F

    Cold

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 8.

    Low: 8 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 36.

    High: 36 °F

    Mostly Sunny

Detailed Forecast

Tonight
Snow, mainly before 10pm. Low around 16. Calm wind becoming northwest around 6 mph after midnight. Chance of precipitation is 80%. Total nighttime snow accumulation of 1 to 2 inches possible.
Tuesday
Partly sunny, with a high near 27. Northwest wind around 5 mph becoming light and variable in the afternoon.
Tuesday Night
Partly cloudy, with a low around 20. South wind 3 to 5 mph.
Wednesday
A slight chance of rain after noon, mixing with snow after 3pm. Mostly cloudy, with a high near 37. South wind around 6 mph becoming northwest in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 8. North wind 6 to 10 mph.
Thursday
Sunny and cold, with a high near 19.
Thursday Night
Partly cloudy, with a low around 8.
Friday
Mostly sunny, with a high near 36.
Friday Night
Partly cloudy, with a low around 23.
Saturday
Partly sunny, with a high near 38.
Saturday Night
Mostly cloudy, with a low around 23.
Sunday
Mostly cloudy, with a high near 33.
Sunday Night
Mostly cloudy, with a low around 17.
Monday
Partly sunny, with a high near 34.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Foley MO
 39.03°N 90.78°W (Elev. 640 ft)
Last Update:
8:01 pm CST Dec 1, 2025
Forecast Valid:
8pm CST Dec 1, 2025-6pm CST Dec 8, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation