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

23°F

-5°C

Humidity 72%
Wind Speed N 9 G 22 mph
Barometer 30.33 in (1027.6 mb)
Dewpoint 15°F (-9°C)
Visibility NA
Wind Chill13°F (-11°C)
Last update 4 Dec 1:54 am CST
Extended Forecast for

2 Miles SW Brussels IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 13. North wind around 8 mph, with gusts as high as 21 mph.

    Low: 13 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 22. Northeast wind 5 to 8 mph.

    High: 22 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 11. Northeast wind around 5 mph becoming calm in the evening.

    Low: 11 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 38. South wind 3 to 7 mph.

    High: 38 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 25. South wind around 6 mph becoming west after midnight.

    Low: 25 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of freezing rain between midnight and 3am, then a chance of snow after 3am. Cloudy, with a low around 25. Chance of precipitation is 30%.

    Low: 25 °F

    Mostly Cloudy
    then Chance
    Wintry Mix

  • Sunday

    Sunday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 31.

    High: 31 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 16.

    Low: 16 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 13. North wind around 8 mph, with gusts as high as 21 mph.
Thursday
Partly sunny, with a high near 22. Northeast wind 5 to 8 mph.
Thursday Night
Partly cloudy, with a low around 11. Northeast wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 38. South wind 3 to 7 mph.
Friday Night
Mostly cloudy, with a low around 25. South wind around 6 mph becoming west after midnight.
Saturday
Partly sunny, with a high near 36.
Saturday Night
A chance of freezing rain between midnight and 3am, then a chance of snow after 3am. Cloudy, with a low around 25. Chance of precipitation is 30%.
Sunday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 31.
Sunday Night
Mostly cloudy, with a low around 16.
Monday
Mostly sunny, with a high near 31.
Monday Night
Partly cloudy, with a low around 23.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
A 30 percent chance of rain. Mostly cloudy, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW Brussels IL
 38.92°N 90.62°W (Elev. 502 ft)
Last Update:
2:46 am CST Dec 4, 2025
Forecast Valid:
2am 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