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Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
31°F
-1°C
| Humidity | 49% |
| Wind Speed | NW 13 G 22 mph |
| Barometer | 30.05 in (1018.1 mb) |
| Dewpoint | 14°F (-10°C) |
| Visibility | 10.00 mi |
| Wind Chill | 21°F (-6°C) |
| Last update | 18 Jan 10:54 pm CST |
Extended Forecast for
Rockbridge IL
Cold Weather Advisory January 19, 03:00am until January 19, 10:00am
Tonight

Low: 7 °F
Decreasing
Clouds and
BlusteryM.L.King Day
High: 18 °F
Sunny and
Blustery then
SunnyMonday Night

Low: 9 °F
Increasing
CloudsTuesday

High: 33 °F
Mostly Sunny
Tuesday Night

Low: 24 °F
Mostly Cloudy
Wednesday

High: 41 °F
Mostly Sunny
Wednesday Night

Low: 19 °F
Partly Cloudy
Thursday

High: 32 °F
Sunny
Thursday Night

Low: 18 °F
Partly Cloudy
Detailed Forecast
Tonight
Mostly cloudy, then gradually becoming clear, with a low around 7. Blustery, with a northwest wind 10 to 15 mph increasing to 17 to 22 mph after midnight. Winds could gust as high as 36 mph.
M.L.King Day
Sunny and cold, with a high near 18. Wind chill values as low as -10. Blustery, with a northwest wind 15 to 20 mph decreasing to 8 to 13 mph in the afternoon. Winds could gust as high as 30 mph.
Monday Night
Increasing clouds, with a low around 9. West wind around 6 mph becoming light and variable after midnight.
Tuesday
Mostly sunny, with a high near 33. Southwest wind 5 to 9 mph.
Tuesday Night
Mostly cloudy, with a low around 24. Southeast wind 6 to 13 mph becoming southwest after midnight. Winds could gust as high as 22 mph.
Wednesday
Mostly sunny, with a high near 41.
Wednesday Night
Partly cloudy, with a low around 19.
Thursday
Sunny, with a high near 32.
Thursday Night
Partly cloudy, with a low around 18.
Friday
A 20 percent chance of snow after noon. Mostly cloudy, with a high near 33.
Friday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 11.
Saturday
A 30 percent chance of snow. Mostly cloudy, with a high near 21.
Saturday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 2.
Sunday
A 20 percent chance of snow. Partly sunny and cold, with a high near 16.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Rockbridge IL
39.26°N 90.2°W (Elev. 509 ft)
39.26°N 90.2°W (Elev. 509 ft)
9:36 pm CST Jan 18, 2026
11pm CST Jan 18, 2026-6pm CST Jan 25, 2026



