Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
19°F
-7°C
| Humidity | 49% |
| Wind Speed | NW 6 mph |
| Barometer | 30.31 in (1026.7 mb) |
| Dewpoint | 3°F (-16°C) |
| Visibility | 10.00 mi |
| Wind Chill | 11°F (-12°C) |
| Last update | 17 Mar 9:54 am CDT |
Extended Forecast for
4 Miles SSW Hardin IL
Today

High: 33 °F
Increasing
CloudsTonight
Low: 29 °F
Chance Snow
then Chance
Rain/SnowWednesday

High: 62 °F
Becoming
SunnyWednesday Night

Low: 42 °F
Mostly Cloudy
Thursday

High: 71 °F
Mostly Sunny
Thursday Night

Low: 45 °F
Partly Cloudy
Friday

High: 74 °F
Mostly Sunny
Friday Night

Low: 49 °F
Mostly Clear
Saturday

High: 76 °F
Sunny
Detailed Forecast
Today
Increasing clouds, with a high near 33. Northwest wind around 6 mph becoming south in the afternoon.
Tonight
A chance of snow before 2am, then a chance of rain. Cloudy, with a low around 29. Southeast wind 6 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
Wednesday
Partly sunny, then gradually becoming sunny, with a high near 62. South wind 6 to 10 mph becoming west in the afternoon.
Wednesday Night
Mostly cloudy, with a low around 42. Calm wind becoming south around 5 mph after midnight.
Thursday
Mostly sunny, with a high near 71. South wind around 6 mph becoming west in the afternoon.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Mostly sunny, with a high near 74.
Friday Night
Mostly clear, with a low around 49.
Saturday
Sunny, with a high near 76.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Mostly sunny, with a high near 72.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Partly sunny, with a high near 54.
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)
6:56 am CDT Mar 17, 2026
10am CDT Mar 17, 2026-6pm CDT Mar 23, 2026


