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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 | 75% |
| Wind Speed | E 6 mph |
| Barometer | 30.15 in (1021.3 mb) |
| Dewpoint | 25°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 26°F (-3°C) |
| Last update | 2 Feb 11:54 pm CST |
Extended Forecast for
3 Miles E Elsah IL
Overnight

Low: 28 °F
Slight Chance
SnowTuesday
High: 33 °F
Chance Wintry
Mix then
Partly SunnyTuesday Night

Low: 18 °F
Mostly Cloudy
Wednesday

High: 30 °F
Mostly Sunny
Wednesday Night

Low: 16 °F
Mostly Clear
Thursday

High: 40 °F
Partly Sunny
Thursday Night

Low: 32 °F
Mostly Clear
Friday

High: 49 °F
Mostly Sunny
Friday Night

Low: 25 °F
Mostly Clear
Detailed Forecast
Overnight
A 20 percent chance of snow after 3am. Cloudy, with a low around 28. Northeast wind around 7 mph.
Tuesday
A chance of snow and freezing rain before 9am, then a slight chance of freezing rain between 9am and 10am. Mostly cloudy, with a high near 33. North wind 8 to 10 mph. Chance of precipitation is 30%.
Tuesday Night
Mostly cloudy, with a low around 18. North wind 5 to 7 mph.
Wednesday
Mostly sunny, with a high near 30. North wind 3 to 6 mph.
Wednesday Night
Mostly clear, with a low around 16. Light and variable wind.
Thursday
Partly sunny, with a high near 40.
Thursday Night
Mostly clear, with a low around 32.
Friday
Mostly sunny, with a high near 49.
Friday Night
Mostly clear, with a low around 25.
Saturday
Sunny, with a high near 41.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 42.
Sunday Night
Partly cloudy, with a low around 24.
Monday
Mostly sunny, with a high near 41.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles E Elsah IL
38.95°N 90.3°W (Elev. 449 ft)
38.95°N 90.3°W (Elev. 449 ft)
12:26 am CST Feb 3, 2026
12am CST Feb 3, 2026-6pm CST Feb 9, 2026


