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

76°F

24°C

Humidity 72%
Wind Speed Calm
Barometer 30.07 in (1016.7 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 2 Jul 9:51 am CDT
Extended Forecast for

Gurnee IL

Extreme Heat Warning July 2, 10:28am until July 3, 12:00am
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 2, 10:28am until July 3, 12:00am

    NOW until 12:00am Fri

    Extreme Heat Warning

  • Today

    High: 94 °F

    Mostly Sunny

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly after 9pm. Partly cloudy, with a low around 74. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 74 °F

    Chance
    T-storms

  • Friday

    Friday: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 89. Heat index values as high as 97. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 89 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Friday Night

    Friday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 69. West southwest wind 5 to 10 mph. Chance of precipitation is 70%.

    Low: 69 °F

    T-storms
    Likely then
    Showers
    Likely

  • Independence Day

    Independence Day: Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 84. West northwest wind 5 to 10 mph becoming east in the afternoon. Chance of precipitation is 70%.

    High: 84 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.

    Low: 66 °F

    T-storms
    Likely then
    Showers
    Likely

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.

    High: 82 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

Today
Mostly sunny, with a high near 94. Heat index values as high as 102. East wind 10 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 20 mph.
Tonight
A 50 percent chance of showers and thunderstorms, mainly after 9pm. Partly cloudy, with a low around 74. Southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 89. Heat index values as high as 97. Southwest wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm after 10pm. Mostly cloudy, with a low around 69. West southwest wind 5 to 10 mph. Chance of precipitation is 70%.
Independence Day
Showers and thunderstorms likely, mainly after 1pm. Partly sunny, with a high near 84. West northwest wind 5 to 10 mph becoming east in the afternoon. Chance of precipitation is 70%.
Saturday Night
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 70%.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 64.
Monday
Mostly sunny, with a high near 81.
Monday Night
Partly cloudy, with a low around 64.
Tuesday
Mostly sunny, with a high near 84.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Gurnee IL
 42.37°N 87.93°W
Last Update:
9:50 am CDT Jul 2, 2026
Forecast Valid:
10am CDT Jul 2, 2026-6pm CDT Jul 8, 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