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.

A Few Clouds

36°F

2°C

Humidity 31%
Wind Speed N 3 mph
Barometer 30.28 in (1025.6 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Last update 22 Jan 4:54 pm CST
Extended Forecast for

4 Miles SW Carrollton IL

Winter Storm Watch January 24, 12:00am until January 25, 06:00pm
Cold Weather Advisory January 23, 03:00am until January 24, 12:00pm
Click here for hazard details and duration
Winter Storm Watch
Cold Weather Advisory

  • Tonight

    Tonight: Partly cloudy, with a low around 5. West wind 5 to 10 mph becoming north 13 to 18 mph after midnight. Winds could gust as high as 28 mph.

    Low: 5 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near 8. Wind chill values as low as -15. North wind 11 to 18 mph, with gusts as high as 26 mph.

    High: 8 °F

    Cold

  • Friday Night

    Friday Night: A 20 percent chance of snow after 3am. Cloudy, with a low around 2. Wind chill values as low as -15. Northeast wind around 11 mph.

    Low: 2 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday

    Saturday: Snow, mainly after 9am. High near 10. Wind chill values as low as -10. Northeast wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.

    High: 10 °F

    Snow

  • Saturday Night

    Saturday Night: Snow. Low around 7. North wind 8 to 10 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    Low: 7 °F

    Snow

  • Sunday

    Sunday: Snow likely, mainly before noon. Cloudy and cold, with a high near 14. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.

    High: 14 °F

    Snow Likely

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around -3.

    Low: -3 °F

    Slight Chance
    Snow then
    Partly Cloudy

  • Monday

    Monday: Sunny and cold, with a high near 16.

    High: 16 °F

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a low around 4.

    Low: 4 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 5. West wind 5 to 10 mph becoming north 13 to 18 mph after midnight. Winds could gust as high as 28 mph.
Friday
Partly sunny and cold, with a high near 8. Wind chill values as low as -15. North wind 11 to 18 mph, with gusts as high as 26 mph.
Friday Night
A 20 percent chance of snow after 3am. Cloudy, with a low around 2. Wind chill values as low as -15. Northeast wind around 11 mph.
Saturday
Snow, mainly after 9am. High near 10. Wind chill values as low as -10. Northeast wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 3 inches possible.
Saturday Night
Snow. Low around 7. North wind 8 to 10 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Sunday
Snow likely, mainly before noon. Cloudy and cold, with a high near 14. Chance of precipitation is 60%. New snow accumulation of 1 to 3 inches possible.
Sunday Night
A 20 percent chance of snow before midnight. Partly cloudy, with a low around -3.
Monday
Sunny and cold, with a high near 16.
Monday Night
Mostly clear, with a low around 4.
Tuesday
Mostly sunny, with a high near 29.
Tuesday Night
Mostly cloudy, with a low around 11.
Wednesday
Partly sunny, with a high near 24.
Wednesday Night
Partly cloudy, with a low around 3.
Thursday
Partly sunny and cold, with a high near 17.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SW Carrollton IL
 39.25°N 90.46°W (Elev. 600 ft)
Last Update:
4:56 pm CST Jan 22, 2026
Forecast Valid:
5pm CST Jan 22, 2026-6pm CST Jan 29, 2026
 
Forecast Discussion
 
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Additional Resources

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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