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

Hazardous Weather Conditions

Current conditions at

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Fair

4°F

-16°C

Humidity 66%
Wind Speed W 10 mph
Barometer 30.31 in (1028.3 mb)
Dewpoint -5°F (-21°C)
Visibility 10.00 mi
Wind Chill-11°F (-24°C)
Last update 19 Jan 10:52 pm CST
Extended Forecast for

Saint Charles IL

  • Tonight

    Tonight: Partly cloudy, with a low around -2. Wind chill values as low as -14. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: -2 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 20. Wind chill values as low as -15. West southwest wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.

    High: 20 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after midnight. Cloudy, with a temperature rising to around 25 by 2am. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.

    Low: 18 °F⇑

    Chance Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: A 20 percent chance of snow before noon. Mostly cloudy, with a high near 28. West wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 28 °F

    Slight Chance
    Snow then
    Partly Sunny

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow before midnight. Mostly cloudy, with a low around 11. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 11 °F

    Chance Snow
    then Mostly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 18.

    High: 18 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around -8.

    Low: -8 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny and cold, with a high near -2.

    High: -2 °F

    Cold

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -12.

    Low: -12 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around -2. Wind chill values as low as -14. West southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday
Increasing clouds, with a high near 20. Wind chill values as low as -15. West southwest wind 5 to 10 mph becoming south in the afternoon. Winds could gust as high as 20 mph.
Tuesday Night
Snow likely, mainly after midnight. Cloudy, with a temperature rising to around 25 by 2am. South wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New snow accumulation of 1 to 2 inches possible.
Wednesday
A 20 percent chance of snow before noon. Mostly cloudy, with a high near 28. West wind 10 to 15 mph, with gusts as high as 25 mph.
Wednesday Night
A 50 percent chance of snow before midnight. Mostly cloudy, with a low around 11. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Mostly sunny, with a high near 18.
Thursday Night
Mostly cloudy, with a low around -8.
Friday
Partly sunny and cold, with a high near -2.
Friday Night
Mostly cloudy, with a low around -12.
Saturday
Partly sunny and cold, with a high near 3.
Saturday Night
Mostly cloudy, with a low around -7.
Sunday
Mostly sunny, with a high near 11.
Sunday Night
Partly cloudy, with a low around 1.
Monday
Mostly sunny, with a high near 18.
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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:
8:51 pm CST Jan 19, 2026
Forecast Valid:
11pm CST Jan 19, 2026-6pm CST Jan 26, 2026
 
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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