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

45°F

7°C

Humidity 56%
Wind Speed Vrbl 3 mph
Barometer 29.88 in (1011.9 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 26 Feb 6:54 pm CST
Extended Forecast for

Kane IL

  • Tonight

    Tonight: Clear, with a low around 35. Calm wind becoming southwest around 5 mph after midnight.

    Low: 35 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 68. Southwest wind 6 to 15 mph, with gusts as high as 22 mph.

    High: 68 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 36. Southwest wind 6 to 9 mph becoming north after midnight.

    Low: 36 °F

    Mostly Clear

  • Saturday

    Saturday: A 20 percent chance of rain after noon. Mostly sunny, with a high near 58. Northeast wind 6 to 11 mph.

    High: 58 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26. North wind 11 to 14 mph, with gusts as high as 22 mph.

    Low: 26 °F

    Partly Cloudy

  • Sunday

    Sunday: A chance of rain and snow after noon. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.

    High: 40 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow, mainly before midnight. Low around 26. Chance of precipitation is 80%.

    Low: 26 °F

    Rain/Snow
    then Chance
    Rain/Snow

  • Monday

    Monday: A slight chance of rain and snow before noon. Mostly cloudy, with a high near 40. Chance of precipitation is 20%.

    High: 40 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Chance Rain

Detailed Forecast

Tonight
Clear, with a low around 35. Calm wind becoming southwest around 5 mph after midnight.
Friday
Sunny, with a high near 68. Southwest wind 6 to 15 mph, with gusts as high as 22 mph.
Friday Night
Mostly clear, with a low around 36. Southwest wind 6 to 9 mph becoming north after midnight.
Saturday
A 20 percent chance of rain after noon. Mostly sunny, with a high near 58. Northeast wind 6 to 11 mph.
Saturday Night
Partly cloudy, with a low around 26. North wind 11 to 14 mph, with gusts as high as 22 mph.
Sunday
A chance of rain and snow after noon. Mostly cloudy, with a high near 40. Chance of precipitation is 40%.
Sunday Night
Rain and snow, mainly before midnight. Low around 26. Chance of precipitation is 80%.
Monday
A slight chance of rain and snow before noon. Mostly cloudy, with a high near 40. Chance of precipitation is 20%.
Monday Night
A 40 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 28.
Tuesday
A 50 percent chance of rain. Cloudy, with a high near 43.
Tuesday Night
Rain likely. Cloudy, with a low around 34. Chance of precipitation is 60%.
Wednesday
Rain likely. Cloudy, with a high near 54. Chance of precipitation is 60%.
Wednesday Night
Rain likely. Cloudy, with a low around 43. Chance of precipitation is 70%.
Thursday
Rain likely. Mostly cloudy, with a high near 64. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Kane IL
 39.2°N 90.38°W (Elev. 551 ft)
Last Update:
4:51 pm CST Feb 26, 2026
Forecast Valid:
7pm CST Feb 26, 2026-6pm CST Mar 5, 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