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Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
32°F
0°C
| Humidity | 38% |
| Wind Speed | NW 13 G 23 mph |
| Barometer | 30.27 in (1025.4 mb) |
| Dewpoint | 9°F (-13°C) |
| Visibility | 10.00 mi |
| Wind Chill | 22°F (-6°C) |
| Last update | 21 Jan 11:54 pm CST |
Extended Forecast for
3 Miles WNW Carrollton IL
Overnight

Low: 22 °F
Mostly Clear
Thursday

High: 37 °F
Partly Sunny
Thursday Night

Low: 6 °F
Mostly Cloudy
Friday

High: 10 °F
Cold
Friday Night
Low: 1 °F
Mostly Cloudy
then Slight
Chance SnowSaturday

High: 13 °F
Snow Likely
Saturday Night
Low: 7 °F
Snow then
Chance SnowSunday

High: 18 °F
Chance Snow
Sunday Night

Low: -2 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly clear, with a low around 22. Northwest wind 6 to 13 mph, with gusts as high as 23 mph.
Thursday
Partly sunny, with a high near 37. West wind 5 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 6. West wind 5 to 10 mph becoming north 12 to 17 mph after midnight. Winds could gust as high as 26 mph.
Friday
Mostly cloudy and cold, with a high near 10. Wind chill values as low as -15. North wind 13 to 17 mph, with gusts as high as 26 mph.
Friday Night
A 20 percent chance of snow after midnight. Mostly cloudy, with a low around 1. North wind around 11 mph, with gusts as high as 20 mph.
Saturday
Snow likely, mainly after noon. Cloudy and cold, with a high near 13. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday Night
Snow, mainly before midnight. Low around 7. Chance of precipitation is 80%.
Sunday
A 40 percent chance of snow, mainly before noon. Partly sunny and cold, with a high near 18.
Sunday Night
Partly cloudy, with a low around -2.
Monday
Sunny and cold, with a high near 15.
Monday Night
Mostly clear, with a low around 3.
Tuesday
Mostly sunny, with a high near 28.
Tuesday Night
Partly cloudy, with a low around 11.
Wednesday
Partly sunny, with a high near 25.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles WNW Carrollton IL
39.29°N 90.46°W (Elev. 607 ft)
39.29°N 90.46°W (Elev. 607 ft)
9:51 pm CST Jan 21, 2026
12am CST Jan 22, 2026-6pm CST Jan 28, 2026


