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.

Overcast

23°F

-5°C

Humidity 74%
Wind Speed Calm
Barometer 30.39 in (1031.0 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Last update 1 Mar 4:51 am CST
Extended Forecast for

Chicago / Waukegan, Waukegan Regional Airport IL

  • Overnight

    Overnight: A slight chance of flurries. Mostly cloudy, with a low around 23. Northeast wind around 10 mph, with gusts as high as 15 mph.

    Low: 23 °F

    Slight Chance
    Flurries

  • Sunday

    Sunday: A slight chance of flurries before 10am. Partly sunny, with a high near 30. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 30 °F

    Slight Chance
    Flurries

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25. East wind around 5 mph, with gusts as high as 10 mph.

    Low: 25 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 39. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 39 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 34. Southeast wind around 5 mph, with gusts as high as 10 mph.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday

    Tuesday: Showers likely, mainly before noon. Cloudy, with a high near 39. Chance of precipitation is 70%.

    High: 39 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers. Mostly cloudy, with a low around 36.

    Low: 36 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers. Mostly cloudy, with a high near 42.

    High: 42 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers. Cloudy, with a low around 38.

    Low: 38 °F

    Chance
    Showers

Detailed Forecast

Overnight
A slight chance of flurries. Mostly cloudy, with a low around 23. Northeast wind around 10 mph, with gusts as high as 15 mph.
Sunday
A slight chance of flurries before 10am. Partly sunny, with a high near 30. East northeast wind 5 to 10 mph, with gusts as high as 15 mph.
Sunday Night
Mostly cloudy, with a low around 25. East wind around 5 mph, with gusts as high as 10 mph.
Monday
Mostly sunny, with a high near 39. Southeast wind 5 to 10 mph, with gusts as high as 15 mph.
Monday Night
A 40 percent chance of showers after midnight. Mostly cloudy, with a low around 34. Southeast wind around 5 mph, with gusts as high as 10 mph.
Tuesday
Showers likely, mainly before noon. Cloudy, with a high near 39. Chance of precipitation is 70%.
Tuesday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 36.
Wednesday
A chance of showers. Mostly cloudy, with a high near 42.
Wednesday Night
A chance of showers. Cloudy, with a low around 38.
Thursday
A chance of showers. Mostly cloudy, with a high near 45.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 40.
Friday
Showers likely. Cloudy, with a high near 63.
Friday Night
Showers likely. Mostly cloudy, with a low around 42.
Saturday
A chance of showers. Mostly cloudy, 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:
2:46 am CST Mar 1, 2026
Forecast Valid:
5am CST Mar 1, 2026-6pm CST Mar 7, 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