Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

67°F

19°C

Humidity 51%
Wind Speed NE 3 mph
Barometer 29.99 in (1014.9 mb)
Dewpoint 48°F (9°C)
Visibility 10.00 mi
Last update 8 Oct 12:54 am CDT
Extended Forecast for

4 Miles E Brussels IL

  • Overnight

    Overnight: Clear, with a low around 58. Light north wind.

    Low: 58 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Light and variable wind.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. Light and variable wind.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. South wind 5 to 9 mph.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 64. South wind 5 to 7 mph.

    Low: 64 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain before 1am.  Mostly cloudy, with a low around 60.

    Low: 60 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 58. Light north wind.
Thursday
Sunny, with a high near 86. Light and variable wind.
Thursday Night
Mostly clear, with a low around 60. Light and variable wind.
Friday
Sunny, with a high near 90. South wind 5 to 9 mph.
Friday Night
Mostly clear, with a low around 64. South wind 5 to 7 mph.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
A 20 percent chance of rain before 1am. Mostly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 83.
Sunday Night
Partly cloudy, with a low around 61.
Columbus Day
Mostly sunny, with a high near 92.
Monday Night
Mostly clear, with a low around 58.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 75.
Tuesday Night
Partly cloudy, with a low around 53.
Wednesday
A 20 percent chance of showers. Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles E Brussels IL
 38.96°N 90.5°W (Elev. 417 ft)
12:41 am CDT Oct 8, 2026
1am CDT Oct 8, 2026-6pm CDT Oct 14, 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