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.

A Few Clouds

27°F

-3°C

Humidity 63%
Wind Speed SE 10 mph
Barometer 30.50 in (1034.4 mb)
Dewpoint 16°F (-9°C)
Visibility 10.00 mi
Wind Chill18°F (-8°C)
Last update 1 Mar 9:51 am CST
Extended Forecast for

Chicago / Waukegan, Waukegan Regional Airport IL

  • Today

    Today: Mostly sunny, with a high near 31. East wind around 10 mph.

    High: 31 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 25. East wind 5 to 10 mph, with gusts as high as 15 mph.

    Low: 25 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 40. Southeast wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 40 °F

    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. East southeast wind around 5 mph, with gusts as high as 10 mph. 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, with thunderstorms also possible after noon. Mostly cloudy, with a high near 42. Chance of precipitation is 50%.

    High: 42 °F

    Chance
    Showers

  • Wednesday Night

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

    Low: 38 °F

    Chance
    Showers

  • Thursday

    Thursday: A chance of showers. Mostly cloudy, with a high near 45.

    High: 45 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 31. East wind around 10 mph.
Tonight
Mostly clear, with a low around 25. East wind 5 to 10 mph, with gusts as high as 15 mph.
Monday
Sunny, with a high near 40. Southeast wind 5 to 15 mph, with gusts as high as 20 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. East southeast wind around 5 mph, with gusts as high as 10 mph. 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, with thunderstorms also possible after noon. Mostly cloudy, with a high near 42. Chance of precipitation is 50%.
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:
9:16 am CST Mar 1, 2026
Forecast Valid:
10am 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