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.

Mostly Cloudy

9°F

-13°C

Humidity 30%
Wind Speed N 10 G 24 mph
Barometer 30.73 in (1041.1 mb)
Dewpoint -16°F (-27°C)
Visibility 10.00 mi
Wind Chill-5°F (-21°C)
Last update 23 Jan 12:54 pm CST
Extended Forecast for

3 Miles ENE Brussels IL

Cold Weather Advisory until January 24, 12:00pm
Winter Storm Warning January 24, 09:00am until January 25, 06:00pm
Click here for hazard details and duration
Cold Weather Advisory
Winter Storm Warning
  •  
    Cold Weather Advisory until January 24, 12:00pm

    NOW until 12:00pm Sat

    Cold Weather Advisory

  • This Afternoon

    High: 9 °F

    Cold

  • Tonight

    Tonight: Cloudy, with a low around 2. Wind chill values as low as -15. Northeast wind 11 to 14 mph.

    Low: 2 °F

    Cloudy

  • Saturday

    Saturday: Snow, mainly after 1pm. High near 11. Wind chill values as low as -15. Northeast wind 9 to 11 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 11 °F

    Chance Snow
    then Snow

  • Saturday Night

    Saturday Night: Snow, mainly after 9pm. Low around 9. North wind 8 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    Low: 9 °F

    Snow

  • Sunday

    Sunday: Snow likely, mainly before noon. Cloudy and cold, with a high near 15. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 3 inches possible.

    High: 15 °F

    Snow Likely
    then Chance
    Snow

  • Sunday Night

    Sunday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around -1.

    Low: -1 °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: Clear, with a low around 8.

    Low: 8 °F

    Clear

Detailed Forecast

This Afternoon
Partly sunny and cold, with a high near 9. Wind chill values as low as -10. North wind around 14 mph, with gusts as high as 23 mph.
Tonight
Cloudy, with a low around 2. Wind chill values as low as -15. Northeast wind 11 to 14 mph.
Saturday
Snow, mainly after 1pm. High near 11. Wind chill values as low as -15. Northeast wind 9 to 11 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Saturday Night
Snow, mainly after 9pm. Low around 9. North wind 8 to 10 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Sunday
Snow likely, mainly before noon. Cloudy and cold, with a high near 15. North wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. 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 -1.
Monday
Sunny and cold, with a high near 16.
Monday Night
Clear, with a low around 8.
Tuesday
Mostly sunny, with a high near 31.
Tuesday Night
Mostly cloudy, with a low around 9.
Wednesday
Partly sunny, with a high near 23.
Wednesday Night
Partly cloudy, with a low around 4.
Thursday
Mostly sunny and cold, with a high near 18.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Brussels IL
 38.98°N 90.53°W (Elev. 712 ft)
Last Update:
11:11 am CST Jan 23, 2026
Forecast Valid:
1pm CST Jan 23, 2026-6pm CST Jan 29, 2026
 
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