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.

Fair

32°F

0°C

Humidity 56%
Wind Speed W 8 mph
Barometer 30.38 in (1029.0 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 27 Nov 8:54 pm CST
Extended Forecast for

4 Miles WNW Carrollton IL

Winter Storm Watch November 29, 12:00am until November 30, 12:00am
Click here for hazard details and duration
Winter Storm Watch

  • Tonight

    Tonight: Clear, with a low around 19. Northwest wind 3 to 7 mph.

    Low: 19 °F

    Clear

  • Friday

    Friday: Increasing clouds, with a high near 36. Light and variable wind.

    High: 36 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Snow, mainly after 1am. Low around 29. Light southeast wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 29 °F

    Chance Snow
    then Snow

  • Saturday

    Saturday: Snow before 3pm, then rain and snow. High near 34. Southeast wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    High: 34 °F

    Snow then
    Rain/Snow

  • Saturday Night

    Saturday Night: Rain and snow likely before midnight. Cloudy, with a low around 23. South wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 23 °F

    Rain/Snow
    Likely then
    Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 27.

    High: 27 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 11.

    Low: 11 °F

    Mostly Cloudy

  • Monday

    Monday: A 20 percent chance of snow after noon. Mostly cloudy, with a high near 23.

    High: 23 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Monday Night

    Monday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 13.

    Low: 13 °F

    Chance Snow

Detailed Forecast

Tonight
Clear, with a low around 19. Northwest wind 3 to 7 mph.
Friday
Increasing clouds, with a high near 36. Light and variable wind.
Friday Night
Snow, mainly after 1am. Low around 29. Light southeast wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Saturday
Snow before 3pm, then rain and snow. High near 34. Southeast wind 11 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Saturday Night
Rain and snow likely before midnight. Cloudy, with a low around 23. South wind 10 to 14 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday
Mostly cloudy, with a high near 27.
Sunday Night
Mostly cloudy, with a low around 11.
Monday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 23.
Monday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 13.
Tuesday
Partly sunny, with a high near 29.
Tuesday Night
Partly cloudy, with a low around 17.
Wednesday
Mostly sunny, with a high near 35.
Wednesday Night
Mostly cloudy, with a low around 20.
Thursday
Mostly cloudy, with a high near 32.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles WNW Carrollton IL
 39.31°N 90.49°W (Elev. 669 ft)
Last Update:
9:31 pm CST Nov 27, 2025
Forecast Valid:
9pm CST Nov 27, 2025-6pm CST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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