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

49°F

9°C

Humidity 55%
Wind Speed NE 3 mph
Barometer 29.62 in (1002.9 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 18 Feb 8:54 pm CST
Extended Forecast for

Kane IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. Southeast wind 3 to 6 mph.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Showers and thunderstorms likely, mainly before 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 69. Southeast wind 5 to 10 mph becoming southwest 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely and
    Patchy Fog
    then
    Scattered
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35. Southwest wind 13 to 18 mph, with gusts as high as 30 mph.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 47. West wind 9 to 18 mph, with gusts as high as 28 mph.

    High: 47 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27. North wind around 7 mph.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain and snow after noon. Mostly sunny, with a high near 43. Chance of precipitation is 20%.

    High: 43 °F

    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 22.

    Low: 22 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 18.

    Low: 18 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 46. Southeast wind 3 to 6 mph.
Thursday
Showers and thunderstorms likely, mainly before 1pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 69. Southeast wind 5 to 10 mph becoming southwest 13 to 18 mph in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 60%.
Thursday Night
Mostly clear, with a low around 35. Southwest wind 13 to 18 mph, with gusts as high as 30 mph.
Friday
Mostly sunny, with a high near 47. West wind 9 to 18 mph, with gusts as high as 28 mph.
Friday Night
Partly cloudy, with a low around 27. North wind around 7 mph.
Saturday
A slight chance of rain and snow after noon. Mostly sunny, with a high near 43. Chance of precipitation is 20%.
Saturday Night
Mostly clear, with a low around 22.
Sunday
Sunny, with a high near 37.
Sunday Night
Mostly clear, with a low around 18.
Monday
Sunny, with a high near 37.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
A 20 percent chance of rain. Partly sunny, with a high near 55.
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:
7:56 pm CST Feb 18, 2026
Forecast Valid:
9pm CST Feb 18, 2026-6pm CST Feb 25, 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