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Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
34°F
1°C
| Humidity | 73% |
| Wind Speed | N 10 mph |
| Barometer | 30.26 in (1024.9 mb) |
| Dewpoint | 26°F (-3°C) |
| Visibility | 10.00 mi |
| Wind Chill | 26°F (-3°C) |
| Last update | 7 Feb 12:54 am CST |
Extended Forecast for
3 Miles SSW Dow IL
Overnight

Low: 25 °F
Clear
Saturday

High: 35 °F
Sunny
Saturday Night

Low: 27 °F
Mostly Cloudy
Sunday

High: 45 °F
Mostly Sunny
Sunday Night

Low: 29 °F
Mostly Clear
Monday

High: 57 °F
Sunny
Monday Night

Low: 42 °F
Mostly Clear
Tuesday

High: 65 °F
Mostly Sunny
Tuesday Night

Low: 36 °F
Chance Rain
Detailed Forecast
Overnight
Clear, with a low around 25. North wind 6 to 9 mph.
Saturday
Sunny, with a high near 35. Northeast wind around 7 mph becoming southeast in the afternoon.
Saturday Night
Mostly cloudy, with a low around 27. Southeast wind 7 to 11 mph.
Sunday
Mostly sunny, with a high near 45. Southeast wind 9 to 11 mph.
Sunday Night
Mostly clear, with a low around 29. Southeast wind 3 to 8 mph.
Monday
Sunny, with a high near 57.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 36.
Wednesday
A 30 percent chance of rain, mainly before noon. Mostly cloudy, with a high near 49.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 32.
Thursday
A 40 percent chance of rain. Mostly cloudy, with a high near 46.
Thursday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 32.
Friday
A 30 percent chance of rain. Mostly cloudy, with a high near 45.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles SSW Dow IL
39°N 90.33°W (Elev. 597 ft)
39°N 90.33°W (Elev. 597 ft)
12:26 am CST Feb 7, 2026
1am CST Feb 7, 2026-6pm CST Feb 13, 2026


