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

58°F

14°C

Humidity 87%
Wind Speed E 9 mph
Barometer 30.09 in (1018.6 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 15 Oct 9:51 am CDT
Extended Forecast for

Great Lakes IL

  • Today

    Today: Showers, mainly after noon. High near 61. East southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 61 °F

    Chance
    Showers then
    Showers

  • Tonight

    Tonight: Showers, mainly before 9pm. Low around 50. Breezy, with a southeast wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 50 °F

    Showers then
    Slight Chance
    Showers and
    Breezy

  • Friday

    Friday: Showers likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 52. Breezy, with a west northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Showers
    Likely and
    Breezy

  • Friday Night

    Friday Night: Scattered showers, mainly before 7pm. Partly cloudy, with a low around 38. Breezy, with a north wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 30%.

    Low: 38 °F

    Scattered
    Showers and
    Breezy

  • Saturday

    Saturday: Sunny, with a high near 55. North northwest wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 43.

    Low: 43 °F

    Clear

  • Sunday

    Sunday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

Today
Showers, mainly after noon. High near 61. East southeast wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tonight
Showers, mainly before 9pm. Low around 50. Breezy, with a southeast wind 10 to 20 mph becoming west northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers likely, mainly between 10am and 4pm. Mostly cloudy, with a high near 52. Breezy, with a west northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Scattered showers, mainly before 7pm. Partly cloudy, with a low around 38. Breezy, with a north wind 15 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 30%.
Saturday
Sunny, with a high near 55. North northwest wind 5 to 10 mph becoming west southwest in the afternoon. Winds could gust as high as 15 mph.
Saturday Night
Clear, with a low around 43.
Sunday
Sunny, with a high near 59.
Sunday Night
Mostly clear, with a low around 47.
Monday
Mostly sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 49.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
Mostly sunny, with a high near 66.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Great Lakes IL
 42.3°N 87.85°W
Last Update:
9:15 am CDT Oct 15, 2026
Forecast Valid:
10am CDT Oct 15, 2026-6pm CDT Oct 21, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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