Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair and Breezy

77°F

25°C

Humidity 28%
Wind Speed S 21 G 29 mph
Barometer 30.08 in (1018.3 mb)
Dewpoint 41°F (5°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 8 Apr 2:54 pm CDT
Extended Forecast for

4 Miles SSW Hardin IL

  • Tonight

    Tonight: Mostly clear, with a low around 55. South wind 8 to 13 mph, with gusts as high as 23 mph.

    Low: 55 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Southwest wind around 8 mph.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: A 30 percent chance of showers after 1am.  Increasing clouds, with a low around 59. South wind 6 to 11 mph, with gusts as high as 20 mph.

    Low: 59 °F

    Partly Cloudy
    then Chance
    Showers

  • Friday

    Friday: Showers and possibly a thunderstorm before 4pm, then showers likely.  High near 68. Southwest wind 6 to 8 mph becoming north in the afternoon.  Chance of precipitation is 80%.

    High: 68 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers, with thunderstorms also possible after 4am.  Mostly cloudy, with a low around 50. Northeast wind around 6 mph.  Chance of precipitation is 40%.

    Low: 50 °F

    Chance
    Showers

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 60.

    Low: 60 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 1pm.  Mostly cloudy, with a high near 76. Chance of precipitation is 30%.

    High: 76 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    T-storms

Detailed Forecast

Tonight
Mostly clear, with a low around 55. South wind 8 to 13 mph, with gusts as high as 23 mph.
Thursday
Sunny, with a high near 77. Southwest wind around 8 mph.
Thursday Night
A 30 percent chance of showers after 1am. Increasing clouds, with a low around 59. South wind 6 to 11 mph, with gusts as high as 20 mph.
Friday
Showers and possibly a thunderstorm before 4pm, then showers likely. High near 68. Southwest wind 6 to 8 mph becoming north in the afternoon. Chance of precipitation is 80%.
Friday Night
A chance of showers, with thunderstorms also possible after 4am. Mostly cloudy, with a low around 50. Northeast wind around 6 mph. Chance of precipitation is 40%.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly cloudy, with a high near 71.
Saturday Night
Mostly cloudy, with a low around 60.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 76. Chance of precipitation is 30%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 65.
Monday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 82.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSW Hardin IL
 39.1°N 90.64°W (Elev. 758 ft)
2:41 pm CDT Apr 8, 2026
4pm CDT Apr 8, 2026-6pm CDT Apr 15, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database