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 86%
Wind Speed E 7 mph
Barometer 29.88 in (1011.6 mb)
Dewpoint 45°F (7°C)
Visibility 9.00 mi
Wind Chill46°F (8°C)
Last update 17 Feb 9:54 am CST
Extended Forecast for

Kane IL

  • Today

    Today: Mostly cloudy, with a high near 60. South wind 10 to 17 mph, with gusts as high as 32 mph.

    High: 60 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of rain between 11pm and 3am. Cloudy during the early evening, then gradual clearing, with a steady temperature around 56. Breezy, with a south wind 15 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.

    Low: 56 °F

    Slight Chance
    Rain and
    Breezy

  • Wednesday

    Wednesday: Sunny, with a high near 70. West wind 7 to 14 mph, with gusts as high as 24 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight. Partly cloudy, with a low around 46. South wind around 6 mph.

    Low: 46 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 71. South wind 7 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%.

    High: 71 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers before midnight. Mostly clear, with a low around 34.

    Low: 34 °F

    Slight Chance
    Showers then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 27.

    Low: 27 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after noon. Mostly sunny, with a high near 43.

    High: 43 °F

    Chance Snow

Detailed Forecast

Today
Mostly cloudy, with a high near 60. South wind 10 to 17 mph, with gusts as high as 32 mph.
Tonight
A slight chance of rain between 11pm and 3am. Cloudy during the early evening, then gradual clearing, with a steady temperature around 56. Breezy, with a south wind 15 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 70. West wind 7 to 14 mph, with gusts as high as 24 mph.
Wednesday Night
A 20 percent chance of showers after midnight. Partly cloudy, with a low around 46. South wind around 6 mph.
Thursday
A chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 71. South wind 7 to 17 mph becoming southwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 40%.
Thursday Night
A 20 percent chance of showers before midnight. Mostly clear, with a low around 34.
Friday
Sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 27.
Saturday
A 30 percent chance of snow, mainly after noon. Mostly sunny, with a high near 43.
Saturday Night
A 20 percent chance of snow before midnight. Mostly clear, with a low around 24.
Sunday
Sunny, with a high near 38.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 39.
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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:
5:01 am CST Feb 17, 2026
Forecast Valid:
10am CST Feb 17, 2026-6pm CST Feb 23, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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