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.

Mostly Cloudy

33°F

1°C

Humidity 64%
Wind Speed NW 9 mph
Barometer 30.30 in (1027.6 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 11 Jan 12:51 pm CST
Extended Forecast for

Waukegan IL

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 34. West wind around 10 mph, with gusts as high as 20 mph.

    High: 34 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 27. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 27 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 41. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 41 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 34. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain. Partly sunny, with a high near 46. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 46 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Rain

  • Wednesday

    Wednesday: Snow, possibly mixed with rain, becoming all snow after noon. High near 35. Breezy. Chance of precipitation is 80%.

    High: 35 °F

    Breezy.
    Rain/Snow
    then Snow

  • Wednesday Night

    Wednesday Night: A chance of snow. Mostly cloudy, with a low around 16. Blustery.

    Low: 16 °F

    Chance Snow
    and Blustery

  • Thursday

    Thursday: Partly sunny, with a high near 27.

    High: 27 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 34. West wind around 10 mph, with gusts as high as 20 mph.
Tonight
Mostly cloudy, with a low around 27. Southwest wind 10 to 15 mph, with gusts as high as 30 mph.
Monday
Mostly sunny, with a high near 41. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 34. West southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Tuesday
A 30 percent chance of rain. Partly sunny, with a high near 46. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
A 30 percent chance of rain after midnight. Mostly cloudy, with a low around 28.
Wednesday
Snow, possibly mixed with rain, becoming all snow after noon. High near 35. Breezy. Chance of precipitation is 80%.
Wednesday Night
A chance of snow. Mostly cloudy, with a low around 16. Blustery.
Thursday
Partly sunny, with a high near 27.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 22.
Friday
A chance of snow. Mostly cloudy, with a high near 32.
Friday Night
A chance of snow. Mostly cloudy, with a low around 18.
Saturday
A chance of snow. Mostly cloudy, with a high near 25.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waukegan IL
 42.37°N 87.85°W
Last Update:
12:46 pm CST Jan 11, 2026
Forecast Valid:
1pm CST Jan 11, 2026-6pm CST Jan 17, 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