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.

Partly Cloudy

58°F

14°C

Humidity 75%
Wind Speed S 13 mph
Barometer 29.59 in (1001.9 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 17 Feb 11:54 pm CST
Extended Forecast for

Kane IL

  • Overnight

    Overnight: A 20 percent chance of rain before 3am. Partly cloudy, with a low around 52. South wind 14 to 17 mph, with gusts as high as 30 mph.

    Low: 52 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: Sunny, with a high near 70. West wind 6 to 13 mph, with gusts as high as 23 mph.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 47. South wind 5 to 8 mph.

    Low: 47 °F

    Partly Cloudy

  • Thursday

    Thursday: A 30 percent chance of rain and thunderstorms, mainly before 1pm. Partly sunny, with a high near 68. South wind 8 to 16 mph, with gusts as high as 30 mph.

    High: 68 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34. West wind 13 to 17 mph, with gusts as high as 26 mph.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

  • Saturday

    Saturday: A 40 percent chance of snow, mainly after noon. Mostly sunny, with a high near 40.

    High: 40 °F

    Chance Snow

  • Saturday Night

    Saturday Night: A 30 percent chance of snow, mainly before midnight. Partly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow

Detailed Forecast

Overnight
A 20 percent chance of rain before 3am. Partly cloudy, with a low around 52. South wind 14 to 17 mph, with gusts as high as 30 mph.
Wednesday
Sunny, with a high near 70. West wind 6 to 13 mph, with gusts as high as 23 mph.
Wednesday Night
Partly cloudy, with a low around 47. South wind 5 to 8 mph.
Thursday
A 30 percent chance of rain and thunderstorms, mainly before 1pm. Partly sunny, with a high near 68. South wind 8 to 16 mph, with gusts as high as 30 mph.
Thursday Night
Mostly clear, with a low around 34. West wind 13 to 17 mph, with gusts as high as 26 mph.
Friday
Sunny, with a high near 47.
Friday Night
Partly cloudy, with a low around 28.
Saturday
A 40 percent chance of snow, mainly after noon. Mostly sunny, with a high near 40.
Saturday Night
A 30 percent chance of snow, mainly before midnight. Partly cloudy, with a low around 24.
Sunday
A 20 percent chance of snow before noon. Mostly sunny, with a high near 36.
Sunday Night
Mostly clear, with a low around 17.
Monday
Sunny, with a high near 37.
Monday Night
Partly cloudy, with a low around 20.
Tuesday
Mostly sunny, with a high near 46.
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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:
12:06 am CST Feb 18, 2026
Forecast Valid:
12am CST Feb 18, 2026-6pm CST Feb 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation