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

32°F

0°C

Humidity 47%
Wind Speed NW 13 mph
Barometer 30.33 in (1027.3 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Wind Chill22°F (-6°C)
Last update 21 Feb 9:54 pm CST
Extended Forecast for

Kane IL

  • Tonight

    Tonight: Mostly clear, with a low around 18. Northwest wind 13 to 17 mph, with gusts as high as 28 mph.

    Low: 18 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 30. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 34 mph.

    High: 30 °F

    Mostly Sunny
    and Blustery

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 13. Northwest wind 14 to 18 mph, with gusts as high as 29 mph.

    Low: 13 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 32. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.

    High: 32 °F

    Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 18. Calm wind becoming south 5 to 8 mph after midnight.

    Low: 18 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 32.

    Low: 32 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 18. Northwest wind 13 to 17 mph, with gusts as high as 28 mph.
Sunday
Mostly sunny, with a high near 30. Blustery, with a northwest wind 18 to 22 mph, with gusts as high as 34 mph.
Sunday Night
Partly cloudy, with a low around 13. Northwest wind 14 to 18 mph, with gusts as high as 29 mph.
Monday
Sunny, with a high near 32. Northwest wind 6 to 14 mph, with gusts as high as 22 mph.
Monday Night
Partly cloudy, with a low around 18. Calm wind becoming south 5 to 8 mph after midnight.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
Partly sunny, with a high near 55.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 32.
Thursday
A 30 percent chance of rain, mainly before noon. Mostly sunny, with a high near 48.
Thursday Night
Mostly clear, with a low around 28.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 36.
Saturday
Mostly sunny, with a high near 59.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kane IL
 39.2°N 90.38°W (Elev. 551 ft)
Last Update:
9:36 pm CST Feb 21, 2026
Forecast Valid:
10pm CST Feb 21, 2026-6pm CST Feb 28, 2026
 
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