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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 | 45% |
| Wind Speed | W 16 G 24 mph |
| Barometer | 30.08 in (1018.8 mb) |
| Dewpoint | 20°F (-7°C) |
| Visibility | 10.00 mi |
| Wind Chill | 32°F (0°C) |
| Last update | 21 Jan 9:54 am CST |
Extended Forecast for
4 Miles SW Carrollton IL
Today

High: 42 °F
Sunny
Tonight

Low: 20 °F
Partly Cloudy
Thursday

High: 36 °F
Partly Sunny
Thursday Night

Low: 4 °F
Mostly Cloudy
Friday

High: 10 °F
Cold
Friday Night

Low: -2 °F
Mostly Cloudy
Saturday

High: 11 °F
Chance Snow
Saturday Night
Low: 5 °F
Chance Snow
then Slight
Chance SnowSunday
High: 18 °F
Slight Chance
Snow then
Mostly Sunny
Detailed Forecast
Today
Sunny, with a high near 42. West wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
Partly cloudy, with a low around 20. Southwest wind 5 to 14 mph becoming northwest in the evening. Winds could gust as high as 25 mph.
Thursday
Partly sunny, with a high near 36. West wind 3 to 7 mph.
Thursday Night
Mostly cloudy, with a low around 4. Light and variable wind becoming north 12 to 17 mph in the evening. Winds could gust as high as 25 mph.
Friday
Mostly cloudy and cold, with a high near 10. North wind 11 to 16 mph, with gusts as high as 26 mph.
Friday Night
Mostly cloudy, with a low around -2.
Saturday
A 40 percent chance of snow, mainly after noon. Cloudy and cold, with a high near 11.
Saturday Night
A 50 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 5.
Sunday
A 20 percent chance of snow before noon. Partly sunny and cold, with a high near 18.
Sunday Night
Partly cloudy, with a low around 2.
Monday
Sunny, with a high near 21.
Monday Night
Mostly clear, with a low around 8.
Tuesday
Mostly sunny, with a high near 33.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles SW Carrollton IL
39.25°N 90.46°W (Elev. 600 ft)
39.25°N 90.46°W (Elev. 600 ft)
8:47 am CST Jan 21, 2026
10am CST Jan 21, 2026-6pm CST Jan 27, 2026


