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

28°F

-2°C

Humidity 85%
Wind Speed Calm
Barometer 30.03 in (1017.2 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Last update 13 Jan 12:54 am CST
Extended Forecast for

Kane IL

  • Overnight

    Overnight: Mostly clear, with a low around 34. Light south wind becoming southwest 5 to 9 mph. Winds could gust as high as 21 mph.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny during the morning, then cloudy during the afternoon, with a high near 59. West wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 59 °F

    Becoming
    Cloudy

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 33. West wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 33 °F

    Chance Rain
    then Mostly
    Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 39. Breezy, with a northwest wind 16 to 23 mph, with gusts as high as 36 mph.

    High: 39 °F

    Partly Sunny
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 16. North wind 9 to 17 mph, with gusts as high as 26 mph.

    Low: 16 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 30.

    High: 30 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24.

    Low: 24 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of snow after noon. Mostly cloudy, with a high near 40. Breezy.

    High: 40 °F

    Mostly Cloudy
    then Chance
    Snow and
    Breezy

  • Friday Night

    Friday Night: A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 17.

    Low: 17 °F

    Slight Chance
    Snow then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 34. Light south wind becoming southwest 5 to 9 mph. Winds could gust as high as 21 mph.
Tuesday
Sunny during the morning, then cloudy during the afternoon, with a high near 59. West wind 9 to 15 mph, with gusts as high as 24 mph.
Tuesday Night
A 30 percent chance of rain, mainly before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 33. West wind 10 to 14 mph, with gusts as high as 23 mph.
Wednesday
Partly sunny, with a high near 39. Breezy, with a northwest wind 16 to 23 mph, with gusts as high as 36 mph.
Wednesday Night
Mostly clear, with a low around 16. North wind 9 to 17 mph, with gusts as high as 26 mph.
Thursday
Mostly sunny, with a high near 30.
Thursday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 24.
Friday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 40. Breezy.
Friday Night
A 20 percent chance of snow before midnight. Mostly cloudy, with a low around 17.
Saturday
Mostly cloudy, with a high near 26.
Saturday Night
Partly cloudy, with a low around 7.
Sunday
Mostly sunny, with a high near 24.
Sunday Night
Partly cloudy, with a low around 11.
M.L.King Day
Mostly sunny, with a high near 32.
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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:
12:21 am CST Jan 13, 2026
Forecast Valid:
1am CST Jan 13, 2026-6pm CST Jan 19, 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