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

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Fair

48°F

9°C

Humidity 37%
Wind Speed W 13 G 23 mph
Barometer 30.14 in (1021.2 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill43°F (6°C)
Last update 5 Apr 1:51 pm CDT
Extended Forecast for

Chicago / Waukegan, Waukegan Regional Airport IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 50. West northwest wind around 15 mph, with gusts as high as 25 mph.

    High: 50 °F

    Sunny

  • Tonight

    Tonight: Scattered showers, mainly before 1am. Mostly cloudy, with a low around 36. West wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.

    Low: 36 °F

    Scattered
    Showers

  • Monday

    Monday: Partly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 47 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of snow showers before 1am. Partly cloudy, with a low around 25. North wind 5 to 15 mph, with gusts as high as 20 mph.

    Low: 25 °F

    Slight Chance
    Snow Showers

  • Tuesday

    Tuesday: Mostly sunny, with a high near 37. North northeast wind around 5 mph becoming east in the afternoon. Winds could gust as high as 10 mph.

    High: 37 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 60.

    High: 60 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A chance of showers. Mostly cloudy, with a low around 51.

    Low: 51 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Partly sunny, with a high near 64.

    High: 64 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 50. West northwest wind around 15 mph, with gusts as high as 25 mph.
Tonight
Scattered showers, mainly before 1am. Mostly cloudy, with a low around 36. West wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 50%.
Monday
Partly sunny, with a high near 47. Northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
A 20 percent chance of snow showers before 1am. Partly cloudy, with a low around 25. North wind 5 to 15 mph, with gusts as high as 20 mph.
Tuesday
Mostly sunny, with a high near 37. North northeast wind around 5 mph becoming east in the afternoon. Winds could gust as high as 10 mph.
Tuesday Night
A slight chance of rain and snow showers between 1am and 4am, then a slight chance of rain showers after 4am. Mostly cloudy, with a low around 30. Chance of precipitation is 20%.
Wednesday
Mostly cloudy, with a high near 60.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 51.
Thursday
A chance of showers. Partly sunny, with a high near 64.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 41.
Friday
A chance of showers. Partly sunny, with a high near 53.
Friday Night
A chance of showers. Mostly cloudy, with a low around 40.
Saturday
A chance of showers. Partly sunny, with a high near 56.
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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:
1:20 pm CDT Apr 5, 2026
Forecast Valid:
2pm CDT Apr 5, 2026-6pm CDT Apr 11, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation