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Hazardous Weather Conditions

Current conditions at

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Fair

65°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 30.08 in (1018.2 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Last update 7 Aug 4:52 am CDT
Extended Forecast for

Saint Charles IL

  • Today

    Today: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 83. Light south wind becoming south southwest 5 to 10 mph in the morning.

    High: 83 °F

    Areas Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly between 9pm and 2am. Partly cloudy, with a low around 68. Southwest wind around 5 mph, with gusts as high as 15 mph.

    Low: 68 °F

    Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 82. West northwest wind 5 to 10 mph.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.

    Low: 63 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 84. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.

    High: 84 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.

    Low: 69 °F

    Chance
    T-storms

  • Monday

    Monday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81.

    High: 81 °F

    Showers
    Likely

Detailed Forecast

Today
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 83. Light south wind becoming south southwest 5 to 10 mph in the morning.
Tonight
A 30 percent chance of showers and thunderstorms, mainly between 9pm and 2am. Partly cloudy, with a low around 68. Southwest wind around 5 mph, with gusts as high as 15 mph.
Saturday
Mostly sunny, with a high near 82. West northwest wind 5 to 10 mph.
Saturday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 63. West northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 20%.
Sunday
A chance of showers and thunderstorms before 7am, then a chance of showers between 7am and 10am, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 84. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 68.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Mostly cloudy, with a high near 81.
Tuesday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers. Mostly cloudy, with a low around 64.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 80.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Thursday
Mostly sunny, with a high near 77.
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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:
3:40 am CDT Aug 7, 2026
Forecast Valid:
5am CDT Aug 7, 2026-6pm CDT Aug 13, 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