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.

Light Snow Fog/Mist

31°F

-1°C

Humidity 89%
Wind Speed N 17 G 37 mph
Barometer 29.27 in (992.0 mb)
Dewpoint 28°F (-2°C)
Visibility 2.50 mi
Wind Chill20°F (-7°C)
Last update 15 Mar 11:51 pm CDT
Extended Forecast for

Great Lakes IL

Winter Weather Advisory March 16, 12:38am until March 16, 01:00pm
Click here for hazard details and duration
Winter Weather Advisory
  •  
    Winter Weather Advisory March 16, 12:38am until March 16, 01:00pm

    NOW until 1:00pm Mon

    Winter Weather Advisory

  • Overnight

    Low: 22 °F

    Wintry Mix
    and Patchy
    Blowing Snow

  • Monday

    Monday: Snow, mainly before 1pm. Patchy blowing snow. Temperature falling to around 22 by 8am. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 24 °F⇓

    Snow and
    Patchy
    Blowing Snow

  • Monday Night

    Monday Night: Cloudy, then gradually becoming partly cloudy, with a low around 11. Wind chill values as low as -3. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 11 °F

    Mostly Cloudy
    and Blustery
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24. Wind chill values as low as -3. West northwest wind around 10 mph, with gusts as high as 20 mph.

    High: 24 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 20. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.

    Low: 20 °F

    Slight Chance
    Snow Showers
    then Snow
    Showers
    Likely

  • Wednesday

    Wednesday: A 20 percent chance of snow showers before 1pm. Mostly cloudy, with a high near 41.

    High: 41 °F

    Slight Chance
    Snow Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy
    then Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Overnight
A chance of rain, snow, and sleet before 1am, then snow. Patchy blowing snow after 1am. Low around 22. Windy, with a northwest wind around 30 mph, with gusts as high as 40 mph. Chance of precipitation is 90%. Total nighttime snow and sleet accumulation of 1 to 3 inches possible.
Monday
Snow, mainly before 1pm. Patchy blowing snow. Temperature falling to around 22 by 8am. Windy, with a west northwest wind 25 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Monday Night
Cloudy, then gradually becoming partly cloudy, with a low around 11. Wind chill values as low as -3. Blustery, with a northwest wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Mostly sunny, with a high near 24. Wind chill values as low as -3. West northwest wind around 10 mph, with gusts as high as 20 mph.
Tuesday Night
Snow showers likely, mainly after 1am. Mostly cloudy, with a low around 20. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%.
Wednesday
A 20 percent chance of snow showers before 1pm. Mostly cloudy, with a high near 41.
Wednesday Night
A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 34.
Thursday
Mostly sunny, with a high near 48.
Thursday Night
Mostly cloudy, with a low around 36.
Friday
Partly sunny, with a high near 58.
Friday Night
Mostly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 53.
Saturday Night
Partly cloudy, with a low around 36.
Sunday
Partly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Lakes IL
 42.3°N 87.85°W
Last Update:
11:26 pm CDT Mar 15, 2026
Forecast Valid:
12am CDT Mar 16, 2026-6pm CDT Mar 22, 2026
 
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Additional Resources

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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