Heavy to Excessive Rains in The Four Corners Region and Midwest; Heat Persists in the South-Central U.S.

Repeated rounds of showers and thunderstorms could bring a flash flooding threat across the Four Corners region and from the mid-Mississippi Valley into the lower Great Lakes. Hot temperatures and high humidity will continue to challenge daily records from the Southern Plains to the lower Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Mostly Cloudy

64°F

18°C

Humidity 87%
Wind Speed NE 7 mph
Barometer 30.28 in (1024.7 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 16 Sep 6:51 am CDT
Extended Forecast for

Wonder Lake IL

  • Today

    Today: A 20 percent chance of showers.  Mostly cloudy, with a high near 72. East northeast wind 5 to 10 mph.

    High: 72 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 10pm.  Mostly cloudy, with a low around 62. East northeast wind around 5 mph becoming calm  in the evening. Winds could gust as high as 10 mph.  Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    Showers

  • Thursday

    Thursday: A 40 percent chance of showers before 10am.  Mostly cloudy, with a high near 75. Calm wind becoming north northeast around 5 mph in the afternoon.

    High: 75 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 59. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 59 °F

    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of showers, mainly after 1pm.  Mostly cloudy, with a high near 75. East wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 75 °F

    Chance
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm.  Low around 61. Chance of precipitation is 80%.

    Low: 61 °F

    Showers

  • Saturday

    Saturday: Showers and possibly a thunderstorm.  High near 78. Chance of precipitation is 90%.

    High: 78 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely, mainly before 1am.  Cloudy, with a low around 60.

    Low: 60 °F

    Showers
    Likely

  • Sunday

    Sunday: A chance of showers.  Cloudy, with a high near 71.

    High: 71 °F

    Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers. Mostly cloudy, with a high near 72. East northeast wind 5 to 10 mph.
Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 10pm. Mostly cloudy, with a low around 62. East northeast wind around 5 mph becoming calm in the evening. Winds could gust as high as 10 mph. Chance of precipitation is 40%.
Thursday
A 40 percent chance of showers before 10am. Mostly cloudy, with a high near 75. Calm wind becoming north northeast around 5 mph in the afternoon.
Thursday Night
Mostly cloudy, with a low around 59. Northeast wind around 5 mph becoming calm in the evening.
Friday
A 30 percent chance of showers, mainly after 1pm. Mostly cloudy, with a high near 75. East wind 5 to 10 mph, with gusts as high as 20 mph.
Friday Night
Showers and possibly a thunderstorm. Low around 61. Chance of precipitation is 80%.
Saturday
Showers and possibly a thunderstorm. High near 78. Chance of precipitation is 90%.
Saturday Night
Showers likely, mainly before 1am. Cloudy, with a low around 60.
Sunday
A chance of showers. Cloudy, with a high near 71.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 58.
Monday
A chance of showers. Mostly cloudy, with a high near 71.
Monday Night
A chance of showers. Mostly cloudy, with a low around 57.
Tuesday
A chance of showers. Mostly cloudy, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
Wonder Lake IL
 42.41°N 88.34°W
5:45 am CDT Sep 16, 2026
7am CDT Sep 16, 2026-6pm CDT Sep 22, 2026
 
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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