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.

Unknown Precip Fog/Mist

14°F

-10°C

Humidity 92%
Wind Speed W 8 mph
Barometer 30.04 in (1018.4 mb)
Dewpoint 12°F (-11°C)
Visibility 2.50 mi
Wind Chill3°F (-16°C)
Last update 2 Dec 9:52 am CST
Extended Forecast for

Saint Charles IL

  • Today

    Today: Mostly cloudy, with a high near 22. West wind 5 to 10 mph becoming south southwest in the afternoon.

    High: 22 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a temperature rising to around 22 by 4am. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 19 °F⇑

    Mostly Cloudy

  • Wednesday

    Wednesday: Snow likely, mainly after noon. Cloudy, with a high near 32. South southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    High: 32 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday Night

    Wednesday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Wind chill values as low as -14. North northwest wind around 10 mph, with gusts as high as 20 mph.

    Low: -1 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny, with a high near 11. North northwest wind 5 to 10 mph becoming southwest in the afternoon.

    High: 11 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around -3.

    Low: -3 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 26.

    High: 26 °F

    Mostly Cloudy

Detailed Forecast

Today
Mostly cloudy, with a high near 22. West wind 5 to 10 mph becoming south southwest in the afternoon.
Tonight
Mostly cloudy, with a temperature rising to around 22 by 4am. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Snow likely, mainly after noon. Cloudy, with a high near 32. South southwest wind 10 to 15 mph becoming north northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around -1. Wind chill values as low as -14. North northwest wind around 10 mph, with gusts as high as 20 mph.
Thursday
Sunny, with a high near 11. North northwest wind 5 to 10 mph becoming southwest in the afternoon.
Thursday Night
Partly cloudy, with a low around -3.
Friday
Partly sunny, with a high near 23.
Friday Night
Mostly cloudy, with a low around 14.
Saturday
Mostly cloudy, with a high near 26.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 12.
Sunday
A chance of snow. Partly sunny, with a high near 24.
Sunday Night
Mostly cloudy, with a low around 8.
Monday
Mostly cloudy, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles IL
 41.93°N 88.32°W
Last Update:
9:31 am CST Dec 2, 2025
Forecast Valid:
10am CST Dec 2, 2025-6pm CST Dec 8, 2025
 
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