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 Rain

68°F

20°C

Humidity 90%
Wind Speed W 6 mph
Barometer 29.72 in (1005.9 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 18 Jun 9:52 pm CDT
Extended Forecast for

Saint Charles IL

  • Tonight

    Tonight: Showers likely, mainly before 11pm. Cloudy, with a low around 62. Northwest wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 62 °F

    Showers
    Likely

  • Juneteenth

    Juneteenth: A 20 percent chance of showers before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 83. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 83 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. Southwest wind 5 to 10 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 85. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 85 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 71. South wind around 15 mph, with gusts as high as 25 mph.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 94. Breezy.

    High: 94 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 74.

    Low: 74 °F

    Clear

Detailed Forecast

Tonight
Showers likely, mainly before 11pm. Cloudy, with a low around 62. Northwest wind around 10 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Juneteenth
A 20 percent chance of showers before 10am. Mostly cloudy, then gradually becoming sunny, with a high near 83. West northwest wind 5 to 10 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 63. Southwest wind 5 to 10 mph.
Friday
Partly sunny, with a high near 85. Southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Friday Night
Mostly clear, with a low around 71. South wind around 15 mph, with gusts as high as 25 mph.
Saturday
Sunny, with a high near 94. Breezy.
Saturday Night
Clear, with a low around 75.
Sunday
Sunny and hot, with a high near 96.
Sunday Night
Clear, with a low around 74.
Monday
Sunny and hot, with a high near 96.
Monday Night
Mostly clear, with a low around 74.
Tuesday
A chance of showers. Mostly sunny, with a high near 93.
Tuesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88.
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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:
8:56 pm CDT Jun 18, 2025
Forecast Valid:
9pm CDT Jun 18, 2025-6pm CDT Jun 25, 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