Excessive Rainfall and Significant Flooding in the Upper Midwest This Weekend

Heavy to excessive rainfall is expected over the weekend across eastern Iowa, northern Missouri, northwest Illinois and southern Wisconsin. Numerous flash floods, some with significant impacts, are expected in these areas. Heaviest rainfall will occur overnight Saturday and Sunday, so be sure to have multiple ways to receive warnings. Read More >

Current conditions at

Chicago / West Chicago, Dupage Airport (KDPA)

Lat: 41.9°NLon: 88.25°WElev: 758ft.

Fair

83°F

28°C

Humidity 63%
Wind Speed S 12 mph
Barometer 30.01 in (1015.4 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 8 Aug 8:52 pm CDT
Extended Forecast for

Lisle IL

  • Tonight

    Tonight: Partly cloudy, with a low around 73. South wind around 10 mph.

    Low: 73 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers and thunderstorms after 4pm.  Sunny, with a high near 93. Heat index values as high as 100. South wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 93 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am, then a slight chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 74. South wind 10 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms.  Partly sunny, with a high near 90. Heat index values as high as 97. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 90 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 73. South wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 73 °F

    Chance
    T-storms

  • Monday

    Monday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm.  Mostly cloudy, with a high near 87. Chance of precipitation is 60%.

    High: 87 °F

    Chance
    T-storms then
    Showers
    Likely

  • Monday Night

    Monday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms.  Partly sunny, with a high near 85.

    High: 85 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 68.

    Low: 68 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 73. South wind around 10 mph.
Saturday
A 20 percent chance of showers and thunderstorms after 4pm. Sunny, with a high near 93. Heat index values as high as 100. South wind 10 to 15 mph, with gusts as high as 30 mph.
Saturday Night
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers between 7pm and 1am, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 74. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 97. South southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Sunday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. South wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.
Monday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Tuesday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
Tuesday Night
Mostly cloudy, with a low around 68.
Wednesday
Mostly sunny, with a high near 86.
Wednesday Night
Partly cloudy, with a low around 68.
Thursday
Mostly sunny, with a high near 87.
Thursday Night
Partly cloudy, with a low around 69.
Friday
Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Lisle IL
 41.81°N 88.09°W
8:56 pm CDT Aug 8, 2025
9pm CDT Aug 8, 2025-6pm CDT Aug 15, 2025
 
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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