News Headlines
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
78°F
26°C
| Humidity | 56% |
| Wind Speed | SE 5 mph |
| Barometer | 29.99 in (1015.0 mb) |
| Dewpoint | 61°F (16°C) |
| Visibility | 10.00 mi |
| Heat Index | 80°F (27°C) |
| Last update | 19 Jun 7:54 pm CDT |
Extended Forecast for
3 Miles WNW Hardin IL
Tonight
Low: 65 °F
Partly Cloudy
then Chance
ShowersSaturday
High: 85 °F
Chance
Showers then
Mostly SunnySaturday Night
Low: 66 °F
Slight Chance
Showers then
Showers
LikelySunday
High: 79 °F
Heavy Rain
Sunday Night
Low: 63 °F
T-storms
Monday
High: 76 °F
Partly Sunny
Monday Night
Low: 59 °F
Partly Cloudy
Tuesday
High: 79 °F
Mostly Sunny
Tuesday Night
Low: 61 °F
Partly Cloudy
Detailed Forecast
Tonight
A 30 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 65. Calm wind.
Saturday
A 30 percent chance of showers, mainly before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 85. Calm wind.
Saturday Night
A chance of showers before 3am, then a chance of showers and thunderstorms between 3am and 5am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 66. Light east wind. Chance of precipitation is 60%.
Sunday
Showers likely and possibly a thunderstorm, then showers and thunderstorms after 7am. Some of the storms could produce heavy rainfall. High near 79. Southeast wind 5 to 9 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 100%.
Sunday Night
Showers and thunderstorms, mainly before 1am. Low around 63. West wind 6 to 8 mph becoming north after midnight. Chance of precipitation is 80%.
Monday
Partly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 59.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 61.
Wednesday
Sunny, with a high near 82.
Wednesday Night
Mostly clear, with a low around 61.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Friday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles WNW Hardin IL
39.16°N 90.69°W (Elev. 430 ft)
39.16°N 90.69°W (Elev. 430 ft)
8:16 pm CDT Jun 19, 2026
8pm CDT Jun 19, 2026-6pm CDT Jun 26, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
