Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

72°F

22°C

Humidity 76%
Wind Speed SE 7 mph
Barometer 29.59 in (1001.5 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 17 Jun 7:54 am CDT
Extended Forecast for

3 Miles W Brussels IL

Tornado Watch until June 17, 03:00pm
Wind Advisory June 17, 01:00pm until June 17, 08:00pm
Click here for hazard details and duration
Tornado Watch
Wind Advisory
  •  
    Tornado Watch until June 17, 03:00pm

    NOW until 3:00pm Wed

    Tornado Watch

  • Today

    High: 92 °F

    Chance
    T-storms and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 11pm.  Mostly cloudy, with a low around 66. Breezy, with a west wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 36 mph.  Chance of precipitation is 70%.

    Low: 66 °F

    T-storms
    Likely and
    Breezy then
    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers, mainly between 1pm and 4pm.  Increasing clouds, with a high near 79. Northwest wind around 8 mph.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 60. Light northwest wind.

    Low: 60 °F

    Decreasing
    Clouds

  • Juneteenth

    Juneteenth: Sunny, with a high near 84. Light northwest wind.

    High: 84 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Today
A chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 92. Breezy, with a south wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 46 mph. Chance of precipitation is 30%.
Tonight
Showers and thunderstorms likely, mainly before 11pm. Mostly cloudy, with a low around 66. Breezy, with a west wind 15 to 20 mph decreasing to 7 to 12 mph after midnight. Winds could gust as high as 36 mph. Chance of precipitation is 70%.
Thursday
A 30 percent chance of showers, mainly between 1pm and 4pm. Increasing clouds, with a high near 79. Northwest wind around 8 mph.
Thursday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 60. Light northwest wind.
Juneteenth
Sunny, with a high near 84. Light northwest wind.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Mostly sunny, with a high near 87.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Sunday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 85. Chance of precipitation is 80%.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Low around 66. Chance of precipitation is 80%.
Monday
A 20 percent chance of showers. Partly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 62.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 82.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Brussels IL
 38.94°N 90.64°W (Elev. 499 ft)
7:56 am CDT Jun 17, 2026
8am CDT Jun 17, 2026-6pm CDT Jun 23, 2026
 
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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