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

41°F

5°C

Humidity 86%
Wind Speed Calm
Barometer 29.99 in (1015.6 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 10 Nov 11:51 pm CST
Extended Forecast for

Old Mill Creek IL

  • Overnight

    Overnight: Mostly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Cloudy

  • Veterans Day

    Veterans Day: Isolated showers between 8am and 4pm. Mostly cloudy, with a high near 54. Light and variable wind becoming north northeast 5 to 10 mph in the morning. Chance of precipitation is 20%.

    High: 54 °F

    Isolated
    Showers

  • Wednesday Night

    Wednesday Night: A slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 34. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 34 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A 20 percent chance of showers before noon. Partly sunny, with a high near 45. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 45 °F

    Breezy.
    Slight Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 30. North northwest wind 10 to 15 mph.

    Low: 30 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 44.

    High: 44 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 28.

    Low: 28 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly cloudy, with a low around 40. Calm wind.
Veterans Day
Isolated showers between 8am and 4pm. Mostly cloudy, with a high near 54. Light and variable wind becoming north northeast 5 to 10 mph in the morning. Chance of precipitation is 20%.
Wednesday Night
A slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 34. North wind 10 to 15 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Thursday
A 20 percent chance of showers before noon. Partly sunny, with a high near 45. Breezy, with a north wind 15 to 20 mph, with gusts as high as 30 mph.
Thursday Night
Partly cloudy, with a low around 30. North northwest wind 10 to 15 mph.
Friday
Mostly sunny, with a high near 44.
Friday Night
Mostly clear, with a low around 26.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 28.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 53.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Old Mill Creek IL
 42.44°N 87.99°W
Last Update:
8:41 pm CST Nov 10, 2026
Forecast Valid:
12am CST Nov 11, 2026-6pm CST Nov 17, 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