National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

A Few Clouds

79°F

26°C

Humidity 54%
Wind Speed S 17 mph
Barometer 29.66 in (1003.9 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Apr 6:54 pm CDT
Extended Forecast for

Kane IL

Flood Watch until April 18, 04:00am
Tornado Watch until April 17, 11:00pm
Click here for hazard details and duration
Flood Watch
...
  •  
    Flood Watch until April 18, 04:00am
    Tornado Watch until April 17, 11:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 45 °F

    Severe
    Thunderstorms

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 57. Northwest wind around 18 mph, with gusts as high as 28 mph.

    High: 57 °F

    Chance
    Showers then
    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 37. Northwest wind 6 to 13 mph becoming southwest after midnight. Winds could gust as high as 21 mph.

    Low: 37 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65. West wind 6 to 15 mph, with gusts as high as 23 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. Northwest wind 6 to 8 mph becoming northeast after midnight.

    Low: 37 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 67.

    High: 67 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78.

    High: 78 °F

    Mostly Sunny

Detailed Forecast

Tonight
Showers and thunderstorms before 4am, then showers likely. Some of the storms could be severe. Low around 45. South wind around 14 mph becoming northwest after midnight. Winds could gust as high as 24 mph. Chance of precipitation is 100%.
Saturday
A 30 percent chance of showers, mainly before 7am. Cloudy through mid morning, then gradual clearing, with a high near 57. Northwest wind around 18 mph, with gusts as high as 28 mph.
Saturday Night
Clear, with a low around 37. Northwest wind 6 to 13 mph becoming southwest after midnight. Winds could gust as high as 21 mph.
Sunday
Sunny, with a high near 65. West wind 6 to 15 mph, with gusts as high as 23 mph.
Sunday Night
Mostly clear, with a low around 37. Northwest wind 6 to 8 mph becoming northeast after midnight.
Monday
Sunny, with a high near 67.
Monday Night
Mostly clear, with a low around 50.
Tuesday
Mostly sunny, with a high near 78.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 58.
Thursday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 83.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
Friday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 77. Chance of precipitation is 60%.
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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:
5:46 pm CDT Apr 17, 2026
Forecast Valid:
7pm CDT Apr 17, 2026-6pm CDT Apr 24, 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