Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

70°F

21°C

Humidity 61%
Wind Speed SW 9 mph
Barometer 29.79 in (1008.2 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 26 Mar 5:54 am CDT
Extended Forecast for

4 Miles SSW Hardin IL

  • Today

    Today: Sunny, with a high near 91. Breezy, with a southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 91 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then showers and possibly a thunderstorm between 2am and 4am, then showers likely after 4am.  Low around 40. Breezy, with a southwest wind 8 to 13 mph becoming northeast 16 to 21 mph in the evening. Winds could gust as high as 38 mph.  Chance of precipitation is 80%.

    Low: 40 °F

    Chance
    T-storms then
    Showers and
    Breezy

  • Friday

    Friday: A 30 percent chance of showers, mainly before 8am.  Cloudy through mid morning, then gradual clearing, with a high near 53. North wind 13 to 16 mph, with gusts as high as 31 mph.

    High: 53 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 30. North wind 6 to 11 mph, with gusts as high as 21 mph.

    Low: 30 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 54. Light and variable wind becoming south 5 to 8 mph in the morning.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: A 20 percent chance of rain and thunderstorms before 1pm.  Mostly sunny, with a high near 80.

    High: 80 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 91. Breezy, with a southwest wind 9 to 14 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 34 mph.
Tonight
Showers and thunderstorms likely before 2am, then showers and possibly a thunderstorm between 2am and 4am, then showers likely after 4am. Low around 40. Breezy, with a southwest wind 8 to 13 mph becoming northeast 16 to 21 mph in the evening. Winds could gust as high as 38 mph. Chance of precipitation is 80%.
Friday
A 30 percent chance of showers, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 53. North wind 13 to 16 mph, with gusts as high as 31 mph.
Friday Night
Mostly clear, with a low around 30. North wind 6 to 11 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 54. Light and variable wind becoming south 5 to 8 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
Mostly cloudy, with a high near 67.
Sunday Night
Partly cloudy, with a low around 56.
Monday
A 20 percent chance of rain and thunderstorms before 1pm. Mostly sunny, with a high near 80.
Monday Night
A 30 percent chance of rain and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 62.
Tuesday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 82.
Tuesday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 62.
Wednesday
A 50 percent chance of rain and thunderstorms. Partly sunny, with a high near 79.
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)
4:21 am CDT Mar 26, 2026
6am CDT Mar 26, 2026-6pm CDT Apr 1, 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