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

Hazardous Weather Conditions

Current conditions at

Chicago/Waukegan Regional Airport (KUGN)

Lat: 42.43°NLon: 87.86°WElev: 709ft.

Overcast

22°F

-6°C

Humidity 85%
Wind Speed Calm
Barometer 29.96 in (1016.5 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 21 Jan 3:51 am CST
Extended Forecast for

Waukegan IL

Extreme Cold Watch January 23, 03:00am until January 23, 12:00pm
Click here for hazard details and duration
Extreme Cold Watch

  • Overnight

    Overnight: A 30 percent chance of snow. Cloudy, with a steady temperature around 22. South wind around 10 mph, with gusts as high as 15 mph.

    Low: 22 °F

    Chance Snow

  • Wednesday

    Wednesday: A chance of snow before 10am, then a chance of snow showers after 5pm. Mostly cloudy, with a high near 27. West southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.

    High: 27 °F

    Chance Snow

  • Wednesday Night

    Wednesday Night: Snow showers likely, mainly before 10pm. Patchy blowing snow between 9pm and 3am. Mostly cloudy, with a low around 10. Wind chill values as low as -5. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 10 °F

    Snow Showers
    Likely and
    Patchy
    Blowing Snow

  • Thursday

    Thursday: A 20 percent chance of snow showers after 3pm. Mostly sunny, with a high near 21. Wind chill values as low as -5. West wind around 15 mph, with gusts as high as 30 mph.

    High: 21 °F

    Mostly Sunny
    then Slight
    Chance Snow
    Showers

  • Thursday Night

    Thursday Night: A 20 percent chance of snow showers before 9pm. Partly cloudy, with a low around -10. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: -10 °F

    Blustery.
    Slight Chance
    Snow Showers
    then Partly
    Cloudy

  • Friday

    Friday: Mostly sunny and cold, with a high near -2. Blustery.

    High: -2 °F

    Mostly Sunny
    and Blustery
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around -9.

    Low: -9 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny and cold, with a high near 6.

    High: 6 °F

    Cold

  • Saturday Night

    Saturday Night: A chance of snow. Mostly cloudy, with a low around 1.

    Low: 1 °F

    Chance Snow

Detailed Forecast

Overnight
A 30 percent chance of snow. Cloudy, with a steady temperature around 22. South wind around 10 mph, with gusts as high as 15 mph.
Wednesday
A chance of snow before 10am, then a chance of snow showers after 5pm. Mostly cloudy, with a high near 27. West southwest wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 30%.
Wednesday Night
Snow showers likely, mainly before 10pm. Patchy blowing snow between 9pm and 3am. Mostly cloudy, with a low around 10. Wind chill values as low as -5. Breezy, with a west wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Thursday
A 20 percent chance of snow showers after 3pm. Mostly sunny, with a high near 21. Wind chill values as low as -5. West wind around 15 mph, with gusts as high as 30 mph.
Thursday Night
A 20 percent chance of snow showers before 9pm. Partly cloudy, with a low around -10. Blustery, with a west northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Friday
Mostly sunny and cold, with a high near -2. Blustery.
Friday Night
Mostly cloudy, with a low around -9.
Saturday
Partly sunny and cold, with a high near 6.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 1.
Sunday
A chance of snow. Mostly cloudy, with a high near 14.
Sunday Night
Partly cloudy, with a low around 0.
Monday
Sunny, with a high near 14.
Monday Night
Partly cloudy, with a low around 6.
Tuesday
Partly sunny, with a high near 23.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Waukegan IL
 42.37°N 87.85°W
Last Update:
4:11 am CST Jan 21, 2026
Forecast Valid:
4am CST Jan 21, 2026-6pm CST Jan 27, 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