Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Mostly Cloudy
39°F
4°C
| Humidity | 70% |
| Wind Speed | E 7 mph |
| Barometer | 30.27 in (1024.9 mb) |
| Dewpoint | 30°F (-1°C) |
| Visibility | 10.00 mi |
| Wind Chill | 34°F (1°C) |
| Last update | 29 Mar 4:54 am CDT |
Extended Forecast for
4 Miles SSW Hardin IL
Today

High: 69 °F
Partly Sunny
Tonight

Low: 56 °F
Mostly Cloudy
Monday

High: 83 °F
Sunny
Monday Night

Low: 66 °F
Partly Cloudy
Tuesday
High: 83 °F
Chance Rain
then Rain
LikelyTuesday Night

Low: 48 °F
Rain
Wednesday

High: 54 °F
Rain Likely
Wednesday Night

Low: 44 °F
Rain Likely
Thursday

High: 58 °F
Rain Likely
Detailed Forecast
Today
Partly sunny, with a high near 69. South wind 7 to 13 mph, with gusts as high as 22 mph.
Tonight
Mostly cloudy, with a low around 56. South wind 9 to 11 mph, with gusts as high as 22 mph.
Monday
Sunny, with a high near 83. Southwest wind 10 to 13 mph, with gusts as high as 26 mph.
Monday Night
Partly cloudy, with a low around 66. South wind 13 to 15 mph, with gusts as high as 28 mph.
Tuesday
A chance of rain before 10am, then a chance of rain and thunderstorms between 10am and 1pm, then rain likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 83. Southwest wind 14 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 60%.
Tuesday Night
Rain and possibly a thunderstorm. Low around 48. Chance of precipitation is 90%.
Wednesday
Rain likely and possibly a thunderstorm before 1pm, then a chance of rain and thunderstorms after 1pm. Cloudy, with a high near 54. Chance of precipitation is 60%.
Wednesday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 44. Chance of precipitation is 70%.
Thursday
Rain likely and possibly a thunderstorm. Cloudy, with a high near 58. Chance of precipitation is 70%.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 45.
Friday
A 40 percent chance of rain. Partly sunny, with a high near 73.
Friday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Saturday
Rain likely. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
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)
1:26 am CDT Mar 29, 2026
5am CDT Mar 29, 2026-6pm CDT Apr 4, 2026



