National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

A Few Clouds

71°F

22°C

Humidity 90%
Wind Speed Calm
Barometer 29.97 in (1014.4 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 16 Jun 3:54 am CDT
Extended Forecast for

3 Miles SW Hardin IL

  • Today

    Today: A slight chance of showers before noon, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 83. Light and variable wind. Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 68. Light southeast wind.

    Low: 68 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 6 mph.

    Low: 71 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 85. South wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.

    High: 85 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 66. Chance of precipitation is 40%.

    Low: 66 °F

    Chance
    T-storms then
    Chance
    Showers

  • Juneteenth

    Juneteenth: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

Today
A slight chance of showers before noon, then a slight chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 83. Light and variable wind. Chance of precipitation is 20%.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 68. Light southeast wind.
Tuesday
Mostly sunny, with a high near 88. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South wind around 6 mph.
Wednesday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 85. South wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 66. Chance of precipitation is 40%.
Juneteenth
Sunny, with a high near 85.
Thursday Night
Mostly clear, with a low around 68.
Friday
Sunny, with a high near 89.
Friday Night
Mostly clear, with a low around 75.
Saturday
Sunny, with a high near 93.
Saturday Night
Mostly clear, with a low around 75.
Sunday
Sunny, with a high near 93.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Hardin IL
 39.12°N 90.67°W (Elev. 525 ft)
Last Update:
2:51 am CDT Jun 16, 2025
Forecast Valid:
4am CDT Jun 16, 2025-6pm CDT Jun 22, 2025
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation