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.

Light Snow Fog/Mist

35°F

2°C

Humidity 93%
Wind Speed NW 15 mph
Barometer 29.92 in (1013.7 mb)
Dewpoint 33°F (1°C)
Visibility 4.00 mi
Wind Chill25°F (-4°C)
Last update 11 Mar 3:52 pm CDT
Extended Forecast for

Saint Charles IL

  • This Afternoon

    This Afternoon: Rain, possibly mixed with snow. High near 37. Breezy, with a northwest wind around 20 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 37 °F

    Rain/Snow and
    Breezy

  • Tonight

    Tonight: Mostly cloudy during the early evening, then gradual clearing, with a low around 27. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    Low: 27 °F

    Gradual
    Clearing

  • Thursday

    Thursday: Sunny, with a high near 46. West wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 46 °F

    Sunny

  • Thursday Night

    Thursday Night: Showers likely. Cloudy, with a low around 37. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 60%.

    Low: 37 °F

    Showers
    Likely and
    Windy

  • Friday

    Friday: Partly sunny, with a high near 46. Very windy, with a west wind 30 to 35 mph, with gusts as high as 55 mph.

    High: 46 °F

    Partly Sunny
    and Very
    Windy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 27.

    Low: 27 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 20 percent chance of snow after 1pm. Cloudy, with a high near 42.

    High: 42 °F

    Mostly Cloudy
    then Slight
    Chance Snow

  • Saturday Night

    Saturday Night: Rain and snow showers likely, mainly after 1am. Cloudy, with a low around 32.

    Low: 32 °F

    Rain/Snow
    Likely

  • Sunday

    Sunday: Rain and snow showers, becoming all rain after 1pm. Cloudy, with a high near 48. Breezy.

    High: 48 °F

    Rain/Snow and
    Breezy

Detailed Forecast

This Afternoon
Rain, possibly mixed with snow. High near 37. Breezy, with a northwest wind around 20 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tonight
Mostly cloudy during the early evening, then gradual clearing, with a low around 27. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Thursday
Sunny, with a high near 46. West wind 5 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Showers likely. Cloudy, with a low around 37. Windy, with a south wind 15 to 20 mph increasing to 25 to 30 mph after midnight. Winds could gust as high as 45 mph. Chance of precipitation is 60%.
Friday
Partly sunny, with a high near 46. Very windy, with a west wind 30 to 35 mph, with gusts as high as 55 mph.
Friday Night
Mostly cloudy, with a low around 27.
Saturday
A 20 percent chance of snow after 1pm. Cloudy, with a high near 42.
Saturday Night
Rain and snow showers likely, mainly after 1am. Cloudy, with a low around 32.
Sunday
Rain and snow showers, becoming all rain after 1pm. Cloudy, with a high near 48. Breezy.
Sunday Night
Rain and snow showers likely before 1am, then a chance of snow showers. Cloudy, with a low around 16. Blustery.
Monday
Mostly cloudy, with a high near 25. Blustery.
Monday Night
Mostly cloudy, with a low around 7.
Tuesday
Sunny, with a high near 28.
Tuesday Night
Mostly cloudy, with a low around 19.
Wednesday
Mostly cloudy, with a high near 40.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles IL
 41.93°N 88.32°W
Last Update:
4:17 pm CDT Mar 11, 2026
Forecast Valid:
4pm CDT Mar 11, 2026-6pm CDT Mar 18, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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