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.

Light Rain

61°F

16°C

Humidity 93%
Wind Speed SW 10 mph
Barometer 29.66 in (1004.4 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 2 Apr 9:51 pm CDT
Extended Forecast for

Chicago / Waukegan, Waukegan Regional Airport IL

  • Tonight

    Tonight: Showers and thunderstorms likely before midnight, then isolated showers between midnight and 1am. Mostly cloudy, with a low around 46. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 46 °F

    Breezy.
    Showers
    Likely then
    Isolated
    Showers

  • Friday

    Friday: Partly sunny, with a temperature rising to near 50 by noon, then falling to around 42 during the remainder of the day. West wind 5 to 10 mph becoming east northeast in the afternoon.

    High: 50 °F⇓

    Partly Sunny

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Temperature falling to near 38 by 9pm, then rising to around 47 during the remainder of the night. East northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 38 °F⇑

    Showers

  • Saturday

    Saturday: A 50 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 58. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 58 °F

    Chance
    Showers and
    Breezy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34. Breezy, with a west wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 34 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 48.

    High: 48 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers and thunderstorms likely before midnight, then isolated showers between midnight and 1am. Mostly cloudy, with a low around 46. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a temperature rising to near 50 by noon, then falling to around 42 during the remainder of the day. West wind 5 to 10 mph becoming east northeast in the afternoon.
Friday Night
Showers and possibly a thunderstorm. Temperature falling to near 38 by 9pm, then rising to around 47 during the remainder of the night. East northeast wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
A 50 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 58. Breezy, with a west southwest wind 15 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Mostly cloudy, with a low around 34. Breezy, with a west wind 15 to 20 mph, with gusts as high as 25 mph.
Sunday
Partly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 35.
Monday
Partly sunny, with a high near 49.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 39.
Tuesday Night
Mostly cloudy, with a low around 30.
Wednesday
Mostly cloudy, with a high near 56.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 46.
Thursday
A chance of showers. Partly sunny, with a high near 60.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chicago / Waukegan, Waukegan Regional Airport IL
 42.41°N 87.87°W
Last Update:
9:06 pm CDT Apr 2, 2026
Forecast Valid:
10pm CDT Apr 2, 2026-6pm CDT Apr 9, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation