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.

Overcast

58°F

14°C

Humidity 78%
Wind Speed NE 10 mph
Barometer 30.17 in (1021.8 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 14 Oct 11:52 pm CDT
Extended Forecast for

Saint Charles IL

  • Overnight

    Overnight: A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 56. Northeast wind 5 to 10 mph.

    Low: 56 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Showers, mainly after 10am. High near 59. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 59 °F

    Showers

  • Thursday Night

    Thursday Night: Showers likely, mainly before 1am. Cloudy, with a low around 48. Breezy, with an east wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: Showers likely, mainly after 1pm. Mostly cloudy, with a high near 54. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.

    High: 54 °F

    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: Areas of frost after 5am. Otherwise, partly cloudy, with a low around 35. Breezy, with a north wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 25 mph.

    Low: 35 °F

    Partly Cloudy
    and Breezy
    then Areas
    Frost

  • Saturday

    Saturday: Areas of frost before 8am. Otherwise, sunny, with a high near 58.

    High: 58 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 38.

    Low: 38 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of showers after 4am. Mostly cloudy, with a low around 56. Northeast wind 5 to 10 mph.
Thursday
Showers, mainly after 10am. High near 59. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Thursday Night
Showers likely, mainly before 1am. Cloudy, with a low around 48. Breezy, with an east wind 5 to 10 mph becoming northwest 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 54. Breezy, with a northwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Friday Night
Areas of frost after 5am. Otherwise, partly cloudy, with a low around 35. Breezy, with a north wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 25 mph.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 58.
Saturday Night
Clear, with a low around 38.
Sunday
Sunny, with a high near 65.
Sunday Night
Mostly clear, with a low around 42.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
Sunny, with a high near 70.
Tuesday Night
Mostly clear, with a low around 47.
Wednesday
Sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Charles IL
 41.92°N 88.29°W
Last Update:
9:51 pm CDT Oct 14, 2026
Forecast Valid:
12am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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