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

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Fair

18°F

-8°C

Humidity 71%
Wind Speed S 6 mph
Barometer 30.23 in (1025.3 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 8 Dec 4:52 pm CST
Extended Forecast for

Saint Charles IL

  • Tonight

    Tonight: A 30 percent chance of snow, mainly between 11pm and 1am. Mostly cloudy, with a temperature rising to around 24 by 5am. South wind 5 to 15 mph, with gusts as high as 30 mph.

    Low: 16 °F⇑

    Chance Snow

  • Tuesday

    Tuesday: A chance of rain or freezing rain after 5pm. Cloudy, with a high near 34. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.

    High: 34 °F

    Cloudy then
    Chance
    Rain/Freezing
    Rain

  • Tuesday Night

    Tuesday Night: Rain and freezing rain, possibly mixed with snow, becoming all rain after 9pm. Low around 31. Breezy, with a south southwest wind 15 to 25 mph becoming west after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. Little or no snow accumulation expected.

    Low: 31 °F

    Breezy.
    Wintry Mix
    then Chance
    Rain

  • Wednesday

    Wednesday: Snow likely, mainly before noon. Cloudy, with a high near 33. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    High: 33 °F

    Breezy. Snow
    Likely then
    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 13. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 13 °F

    Chance Snow

  • Thursday

    Thursday: A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 22.

    High: 22 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A 40 percent chance of snow. Mostly cloudy, with a low around 8.

    Low: 8 °F

    Chance Snow

  • Friday

    Friday: A chance of snow. Mostly cloudy, with a high near 21.

    High: 21 °F

    Chance Snow

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -1.

    Low: -1 °F

    Mostly Cloudy

Detailed Forecast

Tonight
A 30 percent chance of snow, mainly between 11pm and 1am. Mostly cloudy, with a temperature rising to around 24 by 5am. South wind 5 to 15 mph, with gusts as high as 30 mph.
Tuesday
A chance of rain or freezing rain after 5pm. Cloudy, with a high near 34. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 40%.
Tuesday Night
Rain and freezing rain, possibly mixed with snow, becoming all rain after 9pm. Low around 31. Breezy, with a south southwest wind 15 to 25 mph becoming west after midnight. Winds could gust as high as 35 mph. Chance of precipitation is 100%. Little or no ice accumulation expected. Little or no snow accumulation expected.
Wednesday
Snow likely, mainly before noon. Cloudy, with a high near 33. Breezy, with a northwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday Night
A 30 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 13. West northwest wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday
A 30 percent chance of snow, mainly after noon. Partly sunny, with a high near 22.
Thursday Night
A 40 percent chance of snow. Mostly cloudy, with a low around 8.
Friday
A chance of snow. Mostly cloudy, with a high near 21.
Friday Night
Mostly cloudy, with a low around -1.
Saturday
Mostly cloudy and cold, with a high near 8.
Saturday Night
Mostly cloudy, with a low around -3.
Sunday
Mostly sunny, with a high near 13.
Sunday Night
Mostly cloudy, with a low around 4.
Monday
A chance of snow. Mostly cloudy, with a high near 24.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles IL
 41.93°N 88.32°W
Last Update:
3:11 pm CST Dec 8, 2025
Forecast Valid:
5pm CST Dec 8, 2025-6pm CST Dec 15, 2025
 
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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