Hazardous Weather Conditions

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Mostly Cloudy

75°F

24°C

Humidity 58%
Wind Speed NW 9 mph
Barometer 29.83 in (1009.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 31 Mar 3:54 pm CDT
Extended Forecast for

4 Miles SSW Hardin IL

  • This Afternoon

    This Afternoon: A 30 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 81. Southwest wind around 10 mph, with gusts as high as 24 mph.

    High: 81 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm.  Low around 54. Southwest wind around 6 mph becoming northeast after midnight.  Chance of precipitation is 90%.

    Low: 54 °F

    T-storms

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm.  Cloudy, with a high near 67. East wind around 7 mph.  Chance of precipitation is 70%.

    High: 67 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am.  Mostly cloudy, with a low around 62. Southeast wind 9 to 14 mph, with gusts as high as 25 mph.  Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers and possibly a thunderstorm.  High near 75. South wind around 17 mph, with gusts as high as 34 mph.  Chance of precipitation is 90%.

    High: 75 °F

    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am.  Partly cloudy, with a low around 58. Chance of precipitation is 50%.

    Low: 58 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm.  Partly sunny, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 50. Chance of precipitation is 90%.

    Low: 50 °F

    Showers

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers.  Mostly cloudy, with a high near 60. Chance of precipitation is 60%.

    High: 60 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 81. Southwest wind around 10 mph, with gusts as high as 24 mph.
Tonight
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 10pm. Low around 54. Southwest wind around 6 mph becoming northeast after midnight. Chance of precipitation is 90%.
Wednesday
Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Cloudy, with a high near 67. East wind around 7 mph. Chance of precipitation is 70%.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 62. Southeast wind 9 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Thursday
Showers and possibly a thunderstorm. High near 75. South wind around 17 mph, with gusts as high as 34 mph. Chance of precipitation is 90%.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 58. Chance of precipitation is 50%.
Friday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Friday Night
Showers and possibly a thunderstorm. Low around 50. Chance of precipitation is 90%.
Saturday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers. Mostly cloudy, with a high near 60. Chance of precipitation is 60%.
Saturday Night
A 20 percent chance of showers before 1am. Partly cloudy, with a low around 36.
Sunday
Mostly sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 63.
Monday Night
Mostly clear, with a low around 42.
Tuesday
Sunny, with a high near 67.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Hardin IL
 39.1°N 90.64°W (Elev. 758 ft)
2:56 pm CDT Mar 31, 2026
4pm CDT Mar 31, 2026-6pm CDT Apr 7, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database