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.

A Few Clouds

63°F

17°C

Humidity 45%
Wind Speed NW 9 mph
Barometer 29.89 in (1011.7 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Last update 14 Apr 8:54 am CDT
Extended Forecast for

Brussels IL

  • Today

    Today: A chance of sprinkles before 1pm, then a slight chance of showers between 1pm and 4pm, then a chance of sprinkles after 4pm. Mostly cloudy, with a high near 67. Northwest wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    High: 67 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 42. West wind 13 to 17 mph, with gusts as high as 26 mph.

    Low: 42 °F

    Gradual
    Clearing

  • Tuesday

    Tuesday: Sunny, with a high near 61. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 30 mph.

    High: 61 °F

    Sunny and
    Breezy then
    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 39. Northwest wind 5 to 10 mph becoming light west in the evening.

    Low: 39 °F

    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 68. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 68 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.

    Low: 52 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 73. Chance of precipitation is 60%.

    High: 73 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A slight chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 63. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.

    High: 83 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
A chance of sprinkles before 1pm, then a slight chance of showers between 1pm and 4pm, then a chance of sprinkles after 4pm. Mostly cloudy, with a high near 67. Northwest wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 42. West wind 13 to 17 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 61. Breezy, with a northwest wind 16 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Clear, with a low around 39. Northwest wind 5 to 10 mph becoming light west in the evening.
Wednesday
Mostly sunny, with a high near 68. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
A slight chance of showers, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 52. Chance of precipitation is 40%.
Thursday
Showers likely and possibly a thunderstorm before 1pm, then a slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 73. Chance of precipitation is 60%.
Thursday Night
A slight chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 63. Chance of precipitation is 20%.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 54.
Saturday
A 40 percent chance of showers. Partly sunny, with a high near 68.
Saturday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 52.
Sunday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Brussels IL
 38.96°N 90.59°W (Elev. 499 ft)
Last Update:
8:37 am CDT Apr 14, 2025
Forecast Valid:
10am CDT Apr 14, 2025-6pm CDT Apr 20, 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