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 30%
Wind Speed S 18 mph
Barometer 30.37 in (1028.9 mb)
Dewpoint 4°F (-16°C)
Visibility 10.00 mi
Wind Chill21°F (-6°C)
Last update 20 Jan 11:54 am CST
Extended Forecast for

Kane IL

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 35. South wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 35 °F

    Mostly Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 26. South wind 10 to 14 mph becoming southwest after midnight. Winds could gust as high as 24 mph.

    Low: 26 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Mostly cloudy through mid morning, then gradual clearing, with a high near 41. West wind 10 to 14 mph, with gusts as high as 22 mph.

    High: 41 °F

    Becoming
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 21. Southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 21 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 35. Northwest wind 5 to 8 mph.

    High: 35 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 8.

    Low: 8 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy and cold, with a high near 14.

    High: 14 °F

    Cold

  • Friday Night

    Friday Night: A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 0.

    Low: 0 °F

    Chance Snow

  • Saturday

    Saturday: A 30 percent chance of snow, mainly after noon. Mostly cloudy and cold, with a high near 12.

    High: 12 °F

    Chance Snow

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 35. South wind 10 to 14 mph, with gusts as high as 21 mph.
Tonight
Increasing clouds, with a low around 26. South wind 10 to 14 mph becoming southwest after midnight. Winds could gust as high as 24 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 41. West wind 10 to 14 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 21. Southwest wind 6 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Thursday
Mostly sunny, with a high near 35. Northwest wind 5 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 8.
Friday
Mostly cloudy and cold, with a high near 14.
Friday Night
A 30 percent chance of snow, mainly after midnight. Mostly cloudy, with a low around 0.
Saturday
A 30 percent chance of snow, mainly after noon. Mostly cloudy and cold, with a high near 12.
Saturday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 4.
Sunday
Mostly sunny, with a high near 22.
Sunday Night
Mostly clear, with a low around 5.
Monday
Sunny, with a high near 26.
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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:
10:51 am CST Jan 20, 2026
Forecast Valid:
12pm CST Jan 20, 2026-6pm CST Jan 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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