National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Partly Cloudy

87°F

31°C

Humidity 65%
Wind Speed S 6 mph
Barometer 29.93 in (1011.9 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 2 Sep 11:51 am CDT
Extended Forecast for

Lindenhurst IL

Heat Advisory until September 2, 09:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory until September 2, 09:00pm

    NOW until 9:00pm Wed

    Heat Advisory

  • This Afternoon

    High: 91 °F

    Mostly Sunny

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 72. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 72 °F

    Chance
    T-storms

  • Thursday

    Thursday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Heat index values as high as 95. Southwest wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.

    High: 87 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 70. Southeast wind 5 to 10 mph becoming east northeast after midnight. Chance of precipitation is 60%.

    Low: 70 °F

    Slight Chance
    T-storms then
    T-storms
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 82. East southeast wind around 5 mph.

    High: 82 °F

    Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 70.

    Low: 70 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday

    Saturday: A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 91. Heat index values as high as 100. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Tonight
A 30 percent chance of showers and thunderstorms, mainly after 2am. Partly cloudy, with a low around 72. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Thursday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Heat index values as high as 95. Southwest wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 15 mph.
Thursday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 70. Southeast wind 5 to 10 mph becoming east northeast after midnight. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 82. East southeast wind around 5 mph.
Friday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Mostly cloudy, with a low around 70.
Saturday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 81.
Saturday Night
Partly cloudy, with a low around 66.
Sunday
Partly sunny, with a high near 81.
Sunday Night
A chance of showers after 1am. Mostly cloudy, with a low around 64.
Labor Day
Partly sunny, with a high near 80.
Monday Night
Mostly cloudy, with a low around 63.
Tuesday
Partly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lindenhurst IL
 42.42°N 88.02°W
Last Update:
12:21 pm CDT Sep 2, 2026
Forecast Valid:
12pm CDT Sep 2, 2026-6pm CDT Sep 8, 2026
 
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Additional Resources

Radar & Satellite Image

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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