Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
66°F
19°C
| Humidity | 37% |
| Wind Speed | S 13 mph |
| Barometer | 30.01 in (1016.1 mb) |
| Dewpoint | 39°F (4°C) |
| Visibility | 10.00 mi |
| Last update | 16 Feb 12:54 pm CST |
Extended Forecast for
4 Miles SSW Hardin IL
Washington's Birthday

High: 64 °F
Mostly Sunny
Tonight

Low: 44 °F
Mostly Cloudy
Tuesday

High: 62 °F
Mostly Cloudy
Tuesday Night
Low: 55 °F
Mostly Cloudy
then Chance
RainWednesday

High: 68 °F
Sunny
Wednesday Night

Low: 46 °F
Partly Cloudy
Thursday

High: 70 °F
Chance Rain
Thursday Night

Low: 39 °F
Slight Chance
RainFriday

High: 53 °F
Slight Chance
Rain
Detailed Forecast
Washington's Birthday
Mostly sunny, with a high near 64. South wind 8 to 10 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, with a low around 44. South wind around 8 mph.
Tuesday
Mostly cloudy, with a high near 62. South wind 7 to 14 mph, with gusts as high as 25 mph.
Tuesday Night
A 30 percent chance of rain after midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 55. South wind 15 to 18 mph, with gusts as high as 31 mph.
Wednesday
Sunny, with a high near 68. West wind 7 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
Partly cloudy, with a low around 46.
Thursday
A 40 percent chance of rain. Mostly sunny, with a high near 70.
Thursday Night
A 20 percent chance of rain. Partly cloudy, with a low around 39.
Friday
A 20 percent chance of rain. Mostly cloudy, with a high near 53.
Friday Night
A 20 percent chance of snow. Low around 35.
Saturday
High near 49.
Saturday Night
Low around 32.
Sunday
High near 48.
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)
12:26 pm CST Feb 16, 2026
1pm CST Feb 16, 2026-6pm CST Feb 22, 2026


