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Hazardous Weather Conditions

Current conditions at

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Overcast

68°F

20°C

Humidity 93%
Wind Speed Calm
Barometer 30.06 in (1017.4 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 6 Aug 1:52 am CDT
Extended Forecast for

Saint Charles IL

  • Overnight

    Overnight: A 20 percent chance of showers and thunderstorms after 4am. Patchy fog. Otherwise, mostly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Slight Chance
    T-storms and
    Patchy Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 1pm. Mostly cloudy, with a high near 80. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 66. South southeast wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.

    High: 83 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a slight chance of showers after 1am. Mostly cloudy, with a low around 68. Southwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 30%.

    Low: 68 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.

    Low: 66 °F

    Mostly Clear
    then Chance
    T-storms

  • Sunday

    Sunday: Showers likely and possibly a thunderstorm before 1pm. Partly sunny, with a high near 83.

    High: 83 °F

    Showers
    Likely

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

Detailed Forecast

Overnight
A 20 percent chance of showers and thunderstorms after 4am. Patchy fog. Otherwise, mostly cloudy, with a low around 67. Calm wind.
Thursday
A chance of showers and thunderstorms before noon, then a slight chance of showers between noon and 1pm. Mostly cloudy, with a high near 80. Calm wind becoming south around 5 mph in the morning. Chance of precipitation is 40%.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 66. South southeast wind around 5 mph becoming calm in the evening.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 83. Light and variable wind becoming southwest 5 to 10 mph in the afternoon.
Friday Night
A chance of showers before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a slight chance of showers after 1am. Mostly cloudy, with a low around 68. Southwest wind around 5 mph, with gusts as high as 10 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 83.
Saturday Night
A 50 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 66.
Sunday
Showers likely and possibly a thunderstorm before 1pm. Partly sunny, with a high near 83.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Monday
A chance of showers and thunderstorms. Mostly cloudy, with a high near 83.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 68.
Tuesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 81.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64.
Wednesday
A chance of showers. Partly sunny, with a high near 79.
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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:
1:21 am CDT Aug 6, 2026
Forecast Valid:
2am CDT Aug 6, 2026-6pm CDT Aug 12, 2026
 
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