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

33°F

1°C

Humidity 52%
Wind Speed N 5 mph
Barometer 30.43 in (1031.0 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill28°F (-2°C)
Last update 28 Nov 12:54 pm CST
Extended Forecast for

2 Miles SW Brussels IL

Winter Weather Advisory November 29, 12:00am until November 30, 12:00am
Click here for hazard details and duration
Winter Weather Advisory

  • This Afternoon

    This Afternoon: Increasing clouds, with a high near 38. Calm wind becoming southeast around 5 mph.

    High: 38 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Snow, mainly after 2am. Low around 31. Southeast wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    Low: 31 °F

    Chance Snow
    then Snow

  • Saturday

    Saturday: Rain and snow, possibly mixed with sleet before 1pm, then rain, possibly mixed with snow between 1pm and 2pm, then rain after 2pm. High near 39. Southeast wind 14 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.

    High: 39 °F

    Wintry Mix

  • Saturday Night

    Saturday Night: A chance of rain, mixing with snow after 8pm, then gradually ending. Cloudy, with a low around 23. Breezy, with a south wind 14 to 20 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 40%.

    Low: 23 °F

    Breezy.
    Chance
    Rain/Snow
    then Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 29. Northwest wind 9 to 17 mph, with gusts as high as 26 mph.

    High: 29 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 18.

    Low: 18 °F

    Mostly Cloudy

  • Monday

    Monday: A 40 percent chance of snow after noon. Cloudy, with a high near 28.

    High: 28 °F

    Cloudy then
    Chance Snow

  • Monday Night

    Monday Night: A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 18.

    Low: 18 °F

    Chance Snow
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 30.

    High: 30 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Increasing clouds, with a high near 38. Calm wind becoming southeast around 5 mph.
Tonight
Snow, mainly after 2am. Low around 31. Southeast wind 6 to 13 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Saturday
Rain and snow, possibly mixed with sleet before 1pm, then rain, possibly mixed with snow between 1pm and 2pm, then rain after 2pm. High near 39. Southeast wind 14 to 17 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow and sleet accumulation of 1 to 3 inches possible.
Saturday Night
A chance of rain, mixing with snow after 8pm, then gradually ending. Cloudy, with a low around 23. Breezy, with a south wind 14 to 20 mph becoming west after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 40%.
Sunday
Mostly cloudy, with a high near 29. Northwest wind 9 to 17 mph, with gusts as high as 26 mph.
Sunday Night
Mostly cloudy, with a low around 18.
Monday
A 40 percent chance of snow after noon. Cloudy, with a high near 28.
Monday Night
A 40 percent chance of snow before midnight. Mostly cloudy, with a low around 18.
Tuesday
Partly sunny, with a high near 30.
Tuesday Night
Partly cloudy, with a low around 18.
Wednesday
Partly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 19.
Thursday
Partly sunny, with a high near 29.
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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:
1:36 pm CST Nov 28, 2025
Forecast Valid:
1pm CST Nov 28, 2025-6pm CST Dec 4, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation