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

47°F

8°C

Humidity 48%
Wind Speed W 16 G 33 mph
Barometer 29.91 in (1013.1 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 18 Apr 4:51 pm CDT
Extended Forecast for

Gurnee IL

Flood Warning until further notice
Freeze Watch April 20, 12:00am until April 20, 09:00am
Frost Advisory April 19, 12:00am until April 19, 09:00am
Click here for hazard details and duration
Flood Warning until further notice
Freeze Watch
Frost Advisory
  •  
    Flood Warning until further notice

    NOW until further notice

    Flood Warning

  • Tonight

    Low: 33 °F

    Mostly Clear
    and Breezy
    then Areas
    Frost

  • Sunday

    Sunday: A slight chance of snow showers before 8am, then a chance of rain showers. Increasing clouds, with a high near 49. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.

    High: 49 °F

    Slight Chance
    Rain/Snow
    then Chance
    Showers

  • Sunday Night

    Sunday Night: Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 30. North northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.

    Low: 30 °F

    Partly Cloudy
    then Frost

  • Monday

    Monday: Widespread frost before 9am. Otherwise, sunny, with a high near 49. Light and variable wind becoming south southeast 5 to 10 mph in the morning.

    High: 49 °F

    Frost then
    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 71.

    High: 71 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

Detailed Forecast

Tonight
Areas of frost after 1am. Otherwise, mostly clear, with a low around 33. Breezy, with a west wind 15 to 20 mph decreasing to 5 to 10 mph in the evening. Winds could gust as high as 30 mph.
Sunday
A slight chance of snow showers before 8am, then a chance of rain showers. Increasing clouds, with a high near 49. West southwest wind 5 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 30%.
Sunday Night
Widespread frost, mainly after 1am. Otherwise, mostly clear, with a low around 30. North northwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 15 mph.
Monday
Widespread frost before 9am. Otherwise, sunny, with a high near 49. Light and variable wind becoming south southeast 5 to 10 mph in the morning.
Monday Night
Mostly cloudy, with a low around 40. South wind around 10 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 71.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 58.
Friday
A chance of showers. Mostly cloudy, with a high near 70.
Friday Night
A chance of showers. Mostly cloudy, with a low around 43.
Saturday
Partly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Gurnee IL
 42.37°N 87.93°W
Last Update:
4:21 pm CDT Apr 18, 2026
Forecast Valid:
5pm CDT Apr 18, 2026-6pm CDT Apr 25, 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