Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
40°F
4°C
| Humidity | 86% |
| Wind Speed | SW 3 mph |
| Barometer | 30.07 in (1018.3 mb) |
| Dewpoint | 36°F (2°C) |
| Visibility | 10.00 mi |
| Last update | 8 Mar 12:54 am CDT |
Extended Forecast for
3 Miles NNW Brussels IL
Overnight

Low: 35 °F
Mostly Clear
Sunday

High: 66 °F
Sunny
Sunday Night

Low: 45 °F
Clear
Monday

High: 76 °F
Sunny
Monday Night

Low: 59 °F
Mostly Clear
Tuesday
High: 81 °F
Slight Chance
Rain then
Rain LikelyTuesday Night

Low: 50 °F
Rain
Wednesday
High: 65 °F
Rain then
Chance RainWednesday Night
Low: 31 °F
Slight Chance
Rain/Snow
then Mostly
Clear
Detailed Forecast
Overnight
Mostly clear, with a low around 35. West wind 3 to 5 mph.
Sunday
Sunny, with a high near 66. Southwest wind 5 to 10 mph, with gusts as high as 21 mph.
Sunday Night
Clear, with a low around 45. South wind around 8 mph.
Monday
Sunny, with a high near 76. South wind 7 to 13 mph, with gusts as high as 24 mph.
Monday Night
Mostly clear, with a low around 59. Southwest wind around 9 mph.
Tuesday
Rain likely, with thunderstorms also possible after 3pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 50. Chance of precipitation is 100%.
Wednesday
Rain and possibly a thunderstorm before noon, then a chance of rain. High near 65. Chance of precipitation is 90%.
Wednesday Night
A slight chance of rain and snow before midnight. Mostly clear, with a low around 31. Chance of precipitation is 20%.
Thursday
Sunny, with a high near 53.
Thursday Night
Mostly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 65.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Mostly cloudy, with a high near 54.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles NNW Brussels IL
39.01°N 90.61°W (Elev. 610 ft)
39.01°N 90.61°W (Elev. 610 ft)
12:26 am CST Mar 8, 2026
12am CST Mar 8, 2026-6pm CDT Mar 14, 2026


