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.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Gurnee IL

Heat Advisory June 22, 09:48am until June 24, 12:00am
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory June 22, 09:48am until June 24, 12:00am

    NOW until 12:00am Tue

    Heat Advisory

  • Today

    High: 95 °F

    Sunny then
    Sunny and
    Breezy

  • Tonight

    Tonight: Clear, with a low around 78. South southwest wind around 15 mph, with gusts as high as 25 mph.

    Low: 78 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 96. Heat index values as high as 102. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 96 °F

    Hot

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 75. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Tuesday

    Tuesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. West northwest wind 5 to 10 mph becoming northeast in the afternoon.

    High: 86 °F

    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.

    Low: 66 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Chance of precipitation is 60%.

    High: 85 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68.

    Low: 68 °F

    Chance
    T-storms

Detailed Forecast

Today
Sunny and hot, with a high near 95. Heat index values as high as 104. Breezy, with a south southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tonight
Clear, with a low around 78. South southwest wind around 15 mph, with gusts as high as 25 mph.
Monday
Sunny and hot, with a high near 96. Heat index values as high as 102. Southwest wind around 15 mph, with gusts as high as 25 mph.
Monday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 75. Southwest wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. West northwest wind 5 to 10 mph becoming northeast in the afternoon.
Tuesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 85. Chance of precipitation is 60%.
Wednesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68.
Thursday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 84.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 84.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gurnee IL
 42.37°N 87.93°W
Last Update:
9:41 am CDT Jun 22, 2025
Forecast Valid:
9am CDT Jun 22, 2025-6pm CDT Jun 28, 2025
 
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