Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
60°F
16°C
| Humidity | 24% |
| Wind Speed | W 17 G 28 mph |
| Barometer | 29.94 in (1013.9 mb) |
| Dewpoint | 23°F (-5°C) |
| Visibility | 10.00 mi |
| Last update | 13 Mar 2:54 pm CDT |
Extended Forecast for
4 Miles SSW Hardin IL
Tonight

Low: 35 °F
Partly Cloudy
Saturday

High: 61 °F
Mostly Sunny
Saturday Night

Low: 54 °F
Mostly Cloudy
Sunday
High: 67 °F
Chance Rain
then ShowersSunday Night
Low: 20 °F
Rain/Snow and
Breezy then
Snow and
BlusteryMonday

High: 26 °F
Chance Snow
and BlusteryMonday Night

Low: 12 °F
Mostly Clear
Tuesday

High: 35 °F
Mostly Sunny
Tuesday Night

Low: 29 °F
Chance
Rain/Snow
Detailed Forecast
Tonight
Partly cloudy, with a low around 35. Northwest wind 5 to 9 mph becoming light and variable.
Saturday
Mostly sunny, with a high near 61. East wind 7 to 11 mph, with gusts as high as 23 mph.
Saturday Night
Mostly cloudy, with a low around 54. Southeast wind 10 to 14 mph, with gusts as high as 25 mph.
Sunday
Rain, mainly between 1pm and 4pm, then showers and possibly a thunderstorm after 4pm. High near 67. South wind around 17 mph, with gusts as high as 39 mph. Chance of precipitation is 90%.
Sunday Night
Rain before 10pm, then snow. Some thunder is also possible. Low around 20. Blustery, with a northwest wind 22 to 26 mph, with gusts as high as 47 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Monday
A 30 percent chance of snow before 1pm. Mostly cloudy, with a high near 26. Blustery.
Monday Night
Mostly clear, with a low around 12.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
A chance of rain and snow. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 39.
Thursday
Mostly sunny, with a high near 67.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 67.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles SSW Hardin IL
39.1°N 90.64°W (Elev. 758 ft)
39.1°N 90.64°W (Elev. 758 ft)
1:21 pm CDT Mar 13, 2026
3pm CDT Mar 13, 2026-6pm CDT Mar 20, 2026


