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

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

71°F

22°C

Humidity 66%
Wind Speed W 7 mph
Barometer 29.85 in (1010.3 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 18 Jun 4:54 pm CDT
Extended Forecast for

3 Miles W Kane IL

  • Tonight

    Tonight: Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 82. Light northwest wind.

    High: 82 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 84. Light southwest wind.

    High: 84 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 64. Southeast wind 3 to 6 mph. Chance of precipitation is 40%.

    Low: 64 °F

    Mostly Clear
    then Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 90%.

    High: 81 °F

    Showers then
    T-storms

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 62. Chance of precipitation is 80%.

    Low: 62 °F

    Showers

  • Monday

    Monday: A 20 percent chance of showers before 1pm. Partly sunny, with a high near 77.

    High: 77 °F

    Slight Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.
Juneteenth
Mostly sunny, with a high near 82. Light northwest wind.
Friday Night
Partly cloudy, with a low around 62. Calm wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 84. Light southwest wind.
Saturday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 64. Southeast wind 3 to 6 mph. Chance of precipitation is 40%.
Sunday
Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 90%.
Sunday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers. Low around 62. Chance of precipitation is 80%.
Monday
A 20 percent chance of showers before 1pm. Partly sunny, with a high near 77.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Partly cloudy, with a low around 59.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Kane IL
 39.18°N 90.41°W (Elev. 548 ft)
Last Update:
5:11 pm CDT Jun 18, 2026
Forecast Valid:
5pm CDT Jun 18, 2026-6pm CDT Jun 25, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation