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

21°F

-6°C

Humidity 71%
Wind Speed N 12 G 20 mph
Barometer 30.34 in (1027.9 mb)
Dewpoint 13°F (-11°C)
Visibility NA
Wind Chill9°F (-13°C)
Last update 4 Dec 2:54 am CST
Extended Forecast for

4 Miles SW Carrollton IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 10. North wind around 8 mph, with gusts as high as 20 mph.

    Low: 10 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny and cold, with a high near 19. Northeast wind 5 to 8 mph.

    High: 19 °F

    Cold

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 4. Calm wind becoming south around 6 mph after midnight.

    Low: 4 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 36. South wind 5 to 7 mph.

    High: 36 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 23. South wind around 6 mph becoming light and variable after midnight.

    Low: 23 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 33.

    High: 33 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of snow after midnight. Cloudy, with a low around 23.

    Low: 23 °F

    Mostly Cloudy
    then Chance
    Snow

  • Sunday

    Sunday: A 20 percent chance of snow. Mostly cloudy, with a high near 29.

    High: 29 °F

    Slight Chance
    Snow

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 13.

    Low: 13 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 10. North wind around 8 mph, with gusts as high as 20 mph.
Thursday
Mostly sunny and cold, with a high near 19. Northeast wind 5 to 8 mph.
Thursday Night
Mostly clear, with a low around 4. Calm wind becoming south around 6 mph after midnight.
Friday
Sunny, with a high near 36. South wind 5 to 7 mph.
Friday Night
Mostly cloudy, with a low around 23. South wind around 6 mph becoming light and variable after midnight.
Saturday
Mostly cloudy, with a high near 33.
Saturday Night
A 30 percent chance of snow after midnight. Cloudy, with a low around 23.
Sunday
A 20 percent chance of snow. Mostly cloudy, with a high near 29.
Sunday Night
Mostly cloudy, with a low around 13.
Monday
Mostly sunny, with a high near 28.
Monday Night
Mostly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 40.
Tuesday Night
Mostly cloudy, with a low around 29.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 41.
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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:
3:16 am CST Dec 4, 2025
Forecast Valid:
3am CST Dec 4, 2025-6pm CST Dec 10, 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