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

62°F

17°C

Humidity 90%
Wind Speed NE 5 mph
Barometer 29.92 in (1012.6 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Apr 12:54 am CDT
Extended Forecast for

Kane IL

  • Overnight

    Overnight: Mostly clear, with a low around 58. South wind around 6 mph.

    Low: 58 °F

    Mostly Clear

  • Friday

    Friday: Scattered showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 83. South wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.

    High: 83 °F

    Mostly Sunny
    then
    Scattered
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms. Low around 45. South wind 13 to 15 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%.

    Low: 45 °F

    T-storms

  • Saturday

    Saturday: Scattered showers, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 57. Northwest wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.

    High: 57 °F

    Scattered
    Showers

  • Saturday Night

    Saturday Night: Clear, with a low around 37. West wind 6 to 14 mph, with gusts as high as 22 mph.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 63.

    High: 63 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 58. South wind around 6 mph.
Friday
Scattered showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 83. South wind 7 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Friday Night
Showers and thunderstorms. Low around 45. South wind 13 to 15 mph becoming west after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%.
Saturday
Scattered showers, mainly before 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 57. Northwest wind 16 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Saturday Night
Clear, with a low around 37. West wind 6 to 14 mph, with gusts as high as 22 mph.
Sunday
Sunny, with a high near 63.
Sunday Night
Mostly clear, with a low around 40.
Monday
Sunny, with a high near 71.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Sunny, with a high near 77.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 55.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kane IL
 39.2°N 90.38°W (Elev. 551 ft)
Last Update:
12:51 am CDT Apr 17, 2026
Forecast Valid:
1am CDT Apr 17, 2026-6pm CDT Apr 23, 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