Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
68°F
20°C
| Humidity | 81% |
| Wind Speed | S 7 mph |
| Barometer | 29.68 in (1004.4 mb) |
| Dewpoint | 62°F (17°C) |
| Visibility | 10.00 mi |
| Last update | 11 Mar 1:54 am CDT |
Extended Forecast for
4 Miles SSW Hardin IL
Overnight

Low: 55 °F
T-storms
Wednesday
High: 61 °F⇓
T-storms then
Chance RainWednesday Night

Low: 30 °F
Decreasing
CloudsThursday

High: 54 °F
Sunny
Thursday Night
Low: 44 °F
Partly Cloudy
then Partly
Cloudy and
BreezyFriday

High: 58 °F
Partly Sunny
Friday Night

Low: 36 °F
Mostly Cloudy
Saturday

High: 62 °F
Mostly Cloudy
Saturday Night
Low: 50 °F
Mostly Cloudy
then Slight
Chance
T-storms
Detailed Forecast
Overnight
Rain and thunderstorms before 4am, then rain and possibly a thunderstorm after 4am. Low around 55. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 90%.
Wednesday
Rain and possibly a thunderstorm before 2pm, then a slight chance of rain between 2pm and 3pm. Temperature falling to around 44 by 4pm. Southwest wind 8 to 18 mph becoming northwest in the morning. Winds could gust as high as 30 mph. Chance of precipitation is 90%.
Wednesday Night
Mostly cloudy, then gradually becoming clear, with a low around 30. Northwest wind 12 to 17 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 28 mph.
Thursday
Sunny, with a high near 54. Light west wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 44. Breezy, with a south wind 11 to 20 mph, with gusts as high as 33 mph.
Friday
Partly sunny, with a high near 58.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
A 20 percent chance of rain and thunderstorms after 1am. Mostly cloudy, with a low around 50.
Sunday
Rain likely and possibly a thunderstorm, then rain after 1pm. High near 63. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 23. Blustery. Chance of precipitation is 30%.
Monday
Sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Partly sunny, with a high near 42.
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 11, 2026
2am CDT Mar 11, 2026-6pm CDT Mar 17, 2026



