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.

A Few Clouds

42°F

6°C

Humidity 79%
Wind Speed SW 5 mph
Barometer 30.21 in (1022.9 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 19 Apr 2:54 am CDT
Extended Forecast for

Kane IL

  • Overnight

    Overnight: Mostly clear, with a low around 37. West wind around 6 mph.

    Low: 37 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65. West wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36. Northeast wind 5 to 10 mph.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 66. East wind 5 to 8 mph becoming south in the afternoon.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 49. Southeast wind 8 to 10 mph.

    Low: 49 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 37. West wind around 6 mph.
Sunday
Sunny, with a high near 65. West wind 6 to 11 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 30 mph.
Sunday Night
Partly cloudy, with a low around 36. Northeast wind 5 to 10 mph.
Monday
Sunny, with a high near 66. East wind 5 to 8 mph becoming south in the afternoon.
Monday Night
Mostly clear, with a low around 49. Southeast wind 8 to 10 mph.
Tuesday
Sunny, with a high near 78.
Tuesday Night
Mostly clear, with a low around 56.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
Mostly sunny, with a high near 82.
Thursday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 73. Chance of precipitation is 70%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
Saturday
A 20 percent chance of showers. Mostly sunny, with a high near 68.
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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:
1:25 am CDT Apr 19, 2026
Forecast Valid:
3am CDT Apr 19, 2026-6pm CDT Apr 25, 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