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.

Light Snow

32°F

0°C

Humidity 43%
Wind Speed S 7 mph
Barometer 29.80 in (1009.6 mb)
Dewpoint 12°F (-11°C)
Visibility 9.00 mi
Wind Chill25°F (-4°C)
Last update 15 Jan 9:54 pm CST
Extended Forecast for

3 Miles WNW Carrollton IL

  • Tonight

    Tonight: Snow likely before 11pm. Mostly cloudy, with a steady temperature around 32. South wind around 10 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 32 °F

    Snow Likely
    then Mostly
    Cloudy

  • Friday

    Friday: A 30 percent chance of snow, mainly after 5pm. Increasing clouds, with a high near 43. West wind 10 to 18 mph, with gusts as high as 30 mph.

    High: 43 °F

    Partly Sunny
    then Chance
    Snow

  • Friday Night

    Friday Night: A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 18. West wind 13 to 16 mph, with gusts as high as 26 mph.

    Low: 18 °F

    Chance Snow
    then Slight
    Chance Snow

  • Saturday

    Saturday: Mostly cloudy, with a high near 23. West wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 23 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 10. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.

    Low: 10 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 28.

    High: 28 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 10.

    Low: 10 °F

    Partly Cloudy

  • M.L.King Day

    M.L.King Day: Sunny and cold, with a high near 20.

    High: 20 °F

    Cold

  • Monday Night

    Monday Night: Mostly clear, with a low around 8.

    Low: 8 °F

    Mostly Clear

Detailed Forecast

Tonight
Snow likely before 11pm. Mostly cloudy, with a steady temperature around 32. South wind around 10 mph becoming west after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than a half inch possible.
Friday
A 30 percent chance of snow, mainly after 5pm. Increasing clouds, with a high near 43. West wind 10 to 18 mph, with gusts as high as 30 mph.
Friday Night
A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 18. West wind 13 to 16 mph, with gusts as high as 26 mph.
Saturday
Mostly cloudy, with a high near 23. West wind 13 to 15 mph, with gusts as high as 25 mph.
Saturday Night
Mostly clear, with a low around 10. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Sunday
Mostly sunny, with a high near 28.
Sunday Night
Partly cloudy, with a low around 10.
M.L.King Day
Sunny and cold, with a high near 20.
Monday Night
Mostly clear, with a low around 8.
Tuesday
Sunny, with a high near 32.
Tuesday Night
Partly cloudy, with a low around 22.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Partly cloudy, with a low around 19.
Thursday
Partly sunny, with a high near 39.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles WNW Carrollton IL
 39.29°N 90.46°W (Elev. 607 ft)
Last Update:
9:41 pm CST Jan 15, 2026
Forecast Valid:
10pm CST Jan 15, 2026-6pm CST Jan 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation