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.

Fair

72°F

22°C

Humidity 41%
Wind Speed SW 5 mph
Barometer 30.11 in (1019.4 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 12 May 9:54 am CDT
Extended Forecast for

Kane IL

  • Today

    Today: Sunny, with a high near 81. Southwest wind 8 to 15 mph, with gusts as high as 24 mph.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, then gradual clearing toward daybreak, with a low around 55. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

    Low: 55 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 73. Northwest wind 9 to 15 mph, with gusts as high as 24 mph.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 45. North wind 5 to 9 mph becoming calm in the evening.

    Low: 45 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 72. Southeast wind 3 to 8 mph.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Partly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Chance of precipitation is 60%.

    High: 83 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 20%.

    Low: 60 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.

    High: 86 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 81. Southwest wind 8 to 15 mph, with gusts as high as 24 mph.
Tonight
A slight chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, then gradual clearing toward daybreak, with a low around 55. Southwest wind 8 to 11 mph becoming northwest after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 73. Northwest wind 9 to 15 mph, with gusts as high as 24 mph.
Wednesday Night
Clear, with a low around 45. North wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny, with a high near 72. Southeast wind 3 to 8 mph.
Thursday Night
Showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 83. Chance of precipitation is 60%.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 20%.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86.
Saturday Night
A slight chance of showers and thunderstorms, then a chance of showers after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Sunday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 66.
Monday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Kane IL
 39.2°N 90.35°W (Elev. 551 ft)
Last Update:
10:16 am CDT May 12, 2026
Forecast Valid:
10am CDT May 12, 2026-6pm CDT May 18, 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