Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
32°F
0°C
| Humidity | 73% |
| Wind Speed | E 6 mph |
| Barometer | 29.98 in (1015.5 mb) |
| Dewpoint | 24°F (-4°C) |
| Visibility | 10.00 mi |
| Wind Chill | 26°F (-3°C) |
| Last update | 11 Dec 12:54 pm CST |
Extended Forecast for
3 Miles NNE Grafton IL
This Afternoon

High: 35 °F
Chance Snow
Tonight

Low: 29 °F
Mostly Cloudy
Friday

High: 35 °F
Cloudy
Friday Night

Low: 21 °F
Mostly Cloudy
Saturday
High: 24 °F⇓
Chance Snow
then Snow
LikelySaturday Night

Low: 0 °F
Partly Cloudy
Sunday

High: 12 °F
Cold
Sunday Night

Low: 3 °F
Mostly Clear
Monday

High: 38 °F
Sunny
Detailed Forecast
This Afternoon
A 50 percent chance of snow after 3pm. Cloudy, with a high near 35. Southeast wind 6 to 10 mph.
Tonight
Mostly cloudy, with a low around 29. East wind 6 to 11 mph becoming north after midnight. Winds could gust as high as 21 mph.
Friday
Cloudy, with a high near 35. Northwest wind around 10 mph.
Friday Night
Mostly cloudy, with a low around 21. Northwest wind around 8 mph.
Saturday
Snow likely, mainly after noon. Cloudy, with a temperature falling to around 17 by 5pm. North wind 7 to 10 mph. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Saturday Night
Partly cloudy, with a low around 0.
Sunday
Sunny and cold, with a high near 12.
Sunday Night
Mostly clear, with a low around 3.
Monday
Sunny, with a high near 38.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 43.
Tuesday Night
Mostly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 50.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
3 Miles NNE Grafton IL
39.02°N 90.41°W (Elev. 614 ft)
39.02°N 90.41°W (Elev. 614 ft)
10:31 am CST Dec 11, 2025
1pm CST Dec 11, 2025-6pm CST Dec 17, 2025


