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.

Fair

38°F

3°C

Humidity 93%
Wind Speed W 5 mph
Barometer 29.98 in (1015.3 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 11 Nov 12:51 am CST
Extended Forecast for

Great Lakes IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 42. Calm wind becoming west around 5 mph.

    Low: 42 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Showers likely, mainly between noon and 5pm. Cloudy, with a high near 53. South wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 39. North northwest wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 39 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly between noon and 3pm. Mostly cloudy, with a high near 46. Breezy, with a north wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.

    High: 46 °F

    Showers
    Likely and
    Breezy

  • Thursday Night

    Thursday Night: A slight chance of rain and snow showers before 9pm, then a slight chance of rain showers. Mostly cloudy, with a low around 33. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 29.

    Low: 29 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 42. Calm wind becoming west around 5 mph.
Veterans Day
Showers likely, mainly between noon and 5pm. Cloudy, with a high near 53. South wind 5 to 10 mph becoming north in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
A 30 percent chance of showers, mainly after 3am. Mostly cloudy, with a low around 39. North northwest wind 10 to 15 mph, with gusts as high as 30 mph.
Thursday
Showers likely, mainly between noon and 3pm. Mostly cloudy, with a high near 46. Breezy, with a north wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Thursday Night
A slight chance of rain and snow showers before 9pm, then a slight chance of rain showers. Mostly cloudy, with a low around 33. North northwest wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 44.
Friday Night
Partly cloudy, with a low around 29.
Saturday
Sunny, with a high near 46.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 46.
Sunday Night
Partly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Great Lakes IL
 42.3°N 87.85°W
Last Update:
12:50 am CST Nov 11, 2026
Forecast Valid:
12am CST Nov 11, 2026-6pm CST Nov 17, 2026
 
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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