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

34°F

1°C

Humidity 76%
Wind Speed N 17 G 30 mph
Barometer 29.96 in (1014.7 mb)
Dewpoint 27°F (-3°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 22 Mar 3:51 pm CDT
Extended Forecast for

Chicago / Waukegan, Waukegan Regional Airport IL

  • This Afternoon

    This Afternoon: A 20 percent chance of showers. Cloudy, with a high near 38. Breezy, with a north wind around 20 mph, with gusts as high as 35 mph.

    High: 38 °F

    Slight Chance
    Showers and
    Breezy

  • Tonight

    Tonight: Mostly cloudy, with a low around 26. Blustery, with a north wind 10 to 20 mph, with gusts as high as 30 mph.

    Low: 26 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Monday

    Monday: Sunny, with a high near 41. North wind around 5 mph becoming east in the afternoon. Winds could gust as high as 15 mph.

    High: 41 °F

    Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. Southeast wind around 5 mph.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 50. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.

    High: 50 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 38.

    Low: 38 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 44.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of showers after 1pm. Mostly cloudy, with a high near 67.

    High: 67 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

This Afternoon
A 20 percent chance of showers. Cloudy, with a high near 38. Breezy, with a north wind around 20 mph, with gusts as high as 35 mph.
Tonight
Mostly cloudy, with a low around 26. Blustery, with a north wind 10 to 20 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 41. North wind around 5 mph becoming east in the afternoon. Winds could gust as high as 15 mph.
Monday Night
Mostly cloudy, with a low around 30. Southeast wind around 5 mph.
Tuesday
Partly sunny, with a high near 50. South southwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Mostly cloudy, with a low around 38.
Wednesday
Mostly cloudy, with a high near 54.
Wednesday Night
Mostly cloudy, with a low around 44.
Thursday
A chance of showers after 1pm. Mostly cloudy, with a high near 67.
Thursday Night
Mostly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 38.
Friday Night
Mostly clear, with a low around 27.
Saturday
Sunny, with a high near 49.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chicago / Waukegan, Waukegan Regional Airport IL
 42.41°N 87.87°W
Last Update:
1:21 pm CDT Mar 22, 2026
Forecast Valid:
3pm CDT Mar 22, 2026-6pm CDT Mar 28, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation